Be careful, pray scripture, call out to God/Jesus, read the bible, and remember, Jesus is the one who has authority.
Now then, I apologize for so much to read, but hey, it depends on how serious you are about seeking help, and at least it's here for whatever you find useful.
These ministries deal with a lot of that kind of stuff, maybe you can check out their websites or contact them to request prayer, information, or help :http://www.sidroth.org/site/PageServerhttp://www.cbn.com/700club/
Book recommendations :http://www.christianbook.com/exposing-satans-playbook-secrets-strategies-discover/perry-stone/9781616388690/pd/26949EB?item_code=WW&netp_id=991289&event=ESRCG&view=detailshttp://www.christianbook.com/prayers-that-rout-demons-ebook/john-eckhardt/9781599793610/pd/15842EB?item_code=WW&netp_id=889109&event=ESRCQ&view=details
Bible verses that talk about demons/evil spirits :Luke 11:14-26
14And He was casting out a demon, and it was mute; when the demon had gone out, the mute man spoke; and the crowds were amazed. 15But some of them said, “He casts out demons by Beelzebul, the ruler of the demons.” 16Others, to test Him, were demanding of Him a sign from heaven. 17But He knew their thoughts and said to them, “Any kingdom divided against itself is laid waste; and a house divided against itself falls. 18“If Satan also is divided against himself, how will his kingdom stand? For you say that I cast out demons by Beelzebul. 19“And if I by Beelzebul cast out demons, by whom do your sons cast them out? So they will be your judges. 20“But if I cast out demons by the finger of God, then the kingdom of God has come upon you. 21“When a strong man, fully armed, guards his own house, his possessions are undisturbed. 22“But when someone stronger than he attacks him and overpowers him, he takes away from him all his armor on which he had relied and distributes his plunder. 23“He who is not with Me is against Me; and he who does not gather with Me, scatters.
24“When the unclean spirit goes out of a man, it passes through waterless places seeking rest, and not finding any, it says, ‘I will return to my house from which I came.’ 25“And when it comes, it finds it swept and put in order. 26“Then it goes and takes along seven other spirits more evil than itself, and they go in and live there; and the last state of that man becomes worse than the first.”Luke 11:11-20
11God was performing extraordinary miracles by the hands of Paul, 12so that handkerchiefs or aprons were even carried from his body to the sick, and the diseases left them and the evil spirits went out. 13But also some of the Jewish exorcists, who went from place to place, attempted to name over those who had the evil spirits the name of the Lord Jesus, saying, “I adjure you by Jesus whom Paul preaches.” 14Seven sons of one Sceva, a Jewish chief priest, were doing this. 15And the evil spirit answered and said to them, “I recognize Jesus, and I know about Paul, but who are you?” 16And the man, in whom was the evil spirit, leaped on them and subdued all of them and overpowered them, so that they fled out of that house naked and wounded. 17This became known to all, both Jews and Greeks, who lived in Ephesus; and fear fell upon them all and the name of the Lord Jesus was being magnified. 18Many also of those who had believed kept coming, confessing and disclosing their practices. 19And many of those who practiced magic brought their books together and began burning them in the sight of everyone; and they counted up the price of them and found it fifty thousand pieces of silver. 20So the word of the Lord was growing mightily and prevailing.Luke 4:33-36
And in the synagogue there was a man who had the spirit of an unclean demon, and he cried out with a loud voice, “Ha! What have you to do with us, Jesus of Nazareth? Have you come to destroy us? I know who you are—the Holy One of God.” But Jesus rebuked him, saying, “Be silent and come out of him!” And when the demon had thrown him down in their midst, he came out of him, having done him no harm. And they were all amazed and said to one another, “What is this word? For with authority and power he commands the unclean spirits, and they come out!” Mark 9:14-30
14When they came to the other disciples, they saw a large crowd around them and the teachers of the law arguing with them. 15As soon as all the people saw Jesus, they were overwhelmed with wonder and ran to greet him. 16“What are you arguing with them about?” he asked. 17A man in the crowd answered, “Teacher, I brought you my son, who is possessed by a spirit that has robbed him of speech. 18Whenever it seizes him, it throws him to the ground. He foams at the mouth, gnashes his teeth and becomes rigid. I asked your disciples to drive out the spirit, but they could not.” 19“O unbelieving generation,” Jesus replied, “how long shall I stay with you? How long shall I put up with you? Bring the boy to me.” 20So they brought him. When the spirit saw Jesus, it immediately threw the boy into a convulsion. He fell to the ground and rolled around, foaming at the mouth. 21Jesus asked the boy’s father, “How long has he been like this?” “From childhood,” he answered. 22“It has often thrown him into fire or water to kill him. But if you can do anything, take pity on us and help us.” 23“‘If you can’?” said Jesus. “Everything is possible for him who believes.” 24Immediately the boy’s father exclaimed, “I do believe; help me overcome my unbelief!” 25When Jesus saw that a crowd was running to the scene, he rebuked the evil spirit. “You deaf and mute spirit,” he said, “I command you, come out of him and never enter him again.” 26The spirit shrieked, convulsed him violently and came out. The boy looked so much like a corpse that many said, “He’s dead.” 27But Jesus took him by the hand and lifted him to his feet, and he stood up. 28After Jesus had gone indoors, his disciples asked him privately, “Why couldn’t we drive it out?” 29He replied, “This kind can come out only by prayer.” 30They left that place and passed through Galilee. Jesus did not want anyone to know where they were, 31because he was teaching his disciples. He said to them, “The Son of Man is going to be betrayed into the hands of men. They will kill him, and after three days he will rise.” 32But they did not understand what he meant and were afraid to ask him about it. Mark 5:1-20
5 They came to the other side of the sea, into the country of the Gerasenes. 2 When He got out of the boat, immediately a man from the tombs with an unclean spirit met Him, 3 and he had his dwelling among the tombs. And no one was able to bind him anymore, even with a chain; 4 because he had often been bound with shackles and chains, and the chains had been torn apart by him and the shackles broken in pieces, and no one was strong enough to subdue him. 5 Constantly, night and day, he was screaming among the tombs and in the mountains, and gashing himself with stones. 6 Seeing Jesus from a distance, he ran up and bowed down before Him; 7 and shouting with a loud voice, he *said, “What business do we have with each other, Jesus, Son of the Most High God? I implore You by God, do not torment me!” 8 For He had been saying to him, “Come out of the man, you unclean spirit!” 9 And He was asking him, “What is your name?” And he *said to Him, “My name is Legion; for we are many.” 10 And he began to implore Him earnestly not to send them out of the country. 11 Now there was a large herd of swine feeding nearby on the mountain. 12 The demons implored Him, saying, “Send us into the swine so that we may enter them.” 13 Jesus gave them permission. And coming out, the unclean spirits entered the swine; and the herd rushed down the steep bank into the sea, about two thousand of them; and they were drowned in the sea.
14 Their herdsmen ran away and reported it in the city and in the country. And the people came to see what it was that had happened. 15 They came to Jesus and observed the man who had been demon-possessed sitting down, clothed and in his right mind, the very man who had had the “legion”; and they became frightened. 16 Those who had seen it described to them how it had happened to the demon-possessed man, and all about the swine. 17 And they began to implore Him to leave their region. 18 As He was getting into the boat, the man who had been demon-possessed was imploring Him that he might accompany Him. 19 And He did not let him, but He *said to him, “Go home to your people and report to them what great things the Lord has done for you, and how He had mercy on you.” 20 And he went away and began to proclaim in Decapolis what great things Jesus had done for him; and everyone was amazed.