Start to read in your Bible again. That will help also to get back on track. The word of God never returns void, it always accomplishes the very thing it says. Speak it out over you, this is your power against your enemy...
Ephesians 6:10-17
10 Finally, my brethren, be strong in the Lord and in the power of His might. 11 Put on the whole armor of God, that you may be able to stand against the wiles of the devil. 12 For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against spiritual hosts of wickedness in the heavenly places. 13 Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand.
14 Stand therefore, having girded your waist with truth, having put on the breastplate of righteousness, 15 and having shod your feet with the preparation of the gospel of peace; 16 above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one. 17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God; 18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints—
2 Corinthians 10:3-6
For though we walk in the flesh, we do not war according to the flesh. 4 For the weapons of our warfare are not carnal but mighty in God for pulling down strongholds, 5 casting down arguments and every high thing that exalts itself against the knowledge of God, bringing every thought into captivity to the obedience of Christ, 6 and being ready to punish all disobedience when your obedience is fulfilled.
Luke 9:1-2
Then He called His twelve disciples together and gave them power and authority over all demons, and to cure diseases. 2 He sent them to preach the kingdom of God and to heal the sick.
Luke 10:17-20
17 Then the seventy returned with joy, saying, “Lord, even the demons are subject to us in Your name.”
18 And He said to them, “I saw Satan fall like lightning from heaven. 19 Behold, I give you the authority to trample on serpents and scorpions, and over all the power of the enemy, and nothing shall by any means hurt you. 20 Nevertheless do not rejoice in this, that the spirits are subject to you, but rather rejoice because your names are written in heaven.”
John 10:7-16
7 Then Jesus said to them again, “Most assuredly, I say to you, I am the door of the sheep. 8 All who ever came before Me[a] are thieves and robbers, but the sheep did not hear them. 9 I am the door. If anyone enters by Me, he will be saved, and will go in and out and find pasture. 10 The thief does not come except to steal, and to kill, and to destroy. I have come that they may have life, and that they may have it more abundantly.
11 “I am the good shepherd. The good shepherd gives His life for the sheep. 12 But a hireling, he who is not the shepherd, one who does not own the sheep, sees the wolf coming and leaves the sheep and flees; and the wolf catches the sheep and scatters them. 13 The hireling flees because he is a hireling and does not care about the sheep. 14 I am the good shepherd; and I know My sheep, and am known by My own. 15 As the Father knows Me, even so I know the Father; and I lay down My life for the sheep. 16 And other sheep I have which are not of this fold; them also I must bring, and they will hear My voice; and there will be one flock and one shepherd.
John 10:27-30
27 My sheep hear My voice, and I know them, and they follow Me. 28 And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand. 29 My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of My Father’s hand. 30 I and My Father are one.”
John 14:1-6
1 “Let not your heart be troubled; you believe in God, believe also in Me. 2 In My Father’s house are many mansions;[a] if it were not so, I would have told you. I go to prepare a place for you. 3 And if I go and prepare a place for you, I will come again and receive you to Myself; that where I am, there you may be also. 4 And where I go you know, and the way you know.”
5 Thomas said to Him, “Lord, we do not know where You are going, and how can we know the way?”
6 Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father except through Me.
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