He loves you so much. I'm beginning to tear up just writing this. These are not my tears, how could they be? I don't even know you. It's Christ in me weeping for you.
His mercy endures forever. You've done the right thing to come here. He hears your cry. Repentance starts as a thought in our heart and mind and manifests with action in our behavior. You've set your mind straight about how you've indulged in sins and now all you need to do is turn from it and towards Him.
Remember what Jesus said, "A smoldering wick I will not quench."
This means that even when someone has walked away to the point that there is seemingly no light of Christ within them, He will not turn them away.
Hear me now: God is going to set you ablaze again for His purposes!
Spend time confessing the sins you've fallen into. Know that His blood is washing you clean with each statement of confession. Declare each time that you are cutting all ties with the kingdom of darkness from these sins. Remember, nothing is too hard for the blood of Jesus to wash away! He is going to make you clean like wool! Don't listen to the devil if he accuses of the things you confess. You're washed of those sins, never return to them and call upon the name of Jesus if temptations come. He will always give you the way of escape and the power to overcome those sins when you call on His name. He has the power!
Start feeding your spirit person by spending time in prayer every morning and afternoon. Strengthen it with time in His Word every day. Get plugged back into a church and become strengthened by the fellowship of believers. This will also help bring a measure of accountability.
Seek some deliverance ministry. Often times, Christians are under great demonic oppression within and without because of doorways they've opened sinning or because of curses in the bloodline related to sins of parents and grandparents (you would be surprised how our families have impacted ourselves spiritually). There is a network of deliverance ministries across the nation called "Restoring the Foundations."
You should be able to find a church or ministry local to you that has people trained and experienced in helping you.
Let me say a prayer for you: Father God, I thank You that Your mercies and faithfulness are never lacking. It is Your desire to restore us in right standing by the power of the work Your Son Jesus accomplished on the cross. I ask You, Father, that you will dispatch angels of deliverance, protection, salvation, warring angels, and ministering angels to this woman to help set her house straight and bring a measure of the light and life of Christ once again within her vessel. Bless her richly, Father, with a revelation of Your love for her, that she may never again stray from Your narrow path for her. In Jesus' mighty name I pray!