DO NOT LOSE HOPE!
Paul said, "If you confess with your mouth, 'Jesus is Lord,' and believe in your heart that God raised him from the dead, you will be saved. For it is with your heart that you believe and are justified, and it is with your mouth that you confess and are saved" (Romans 10:9-10).
This is the only requirement of salvation! Now you have the free will to choose things of God, or to chose your own human nature, whereas before you could only choose the latter. YOU ARE UNDER GRACE! Scripture tells us that you cannot lose your salvation (Joh 10:28 And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand.
Joh 10:29 My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand.)
Now that you are God's child, this does not mean that you should commit sin just because it's covered, rather if you are saved you will have the desire NOT to sin, and will be very convicted when you do. The fact that you are worried about committing these sins shows conviction. You just need to not be paranoid about it and just let the Spirit do the work in you that is His will.
Some things that will help your walk with GOD. Once you understand what these mean, they become easier:
Pray. (prayer is not designed for God to change His mind. It is designed to change your heart. It is not designed to try to make God do something. It is designed to humble yourself before Him and clear the path for HIM to do the work in you)
Read your Bible. (The infallible and inerrant literal WORD of God. The Almighty Creator of ALL things gave us this collection of texts in order to guide us closer to Him! When we are closer to Him, we are at peace, no matter the circumstance.)
Tithe. Tithing is the one action God says to test Him (Mal. 3:10–12) Bring the full
tithe into the storehouse, that there may be food in my house. And thereby put me to the test, says the Lord of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need.
And finally, hang out with other Christians. Heb 10:24 And let us consider one another to provoke unto love and to good works:
25 Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.
26 For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
Also for the energy. Energy attracts like energy, and being around a certain crowd influences you to become more like that crowd (Like hanging out with Jesus to become more like Him). A wise man once said 'you become who you hang out with'.
I hope this helps, and I am always open for questions or difficulties you might have concerning your Christian Faith.
God bless!