If God hates sin, then He must hate me a whole lot because I've done just about everything bad you can imagine. I even got involved in a Satan-worshipping cult for a time (although I got scared and left). What hope is there for someone like me?
Part of what you say is true: God does hate sin. The Bible says, “For I, the Lord, love justice; I hate robbery and iniquity” (Isaiah 61:8). God doesn’t take sin lightly, and neither should we.
But have you ever asked yourself why God hates sin so much? One important reason is because He loves us – and since He loves us, He hates what sin does to us. Sin is like a deadly cancer that hurts and eventually destroys us. It also cuts us off from God, and leads to conflict with other people. Not one good thing comes from sin–not one. This is why the Bible says that “the wages of sin is death” (Romans 6:23). Because God loves us, He hates to see what sin does to us.
And God hates what sin has done to you also, because He loves you. The most important message I could ever tell you is exactly that: God loves you. He loves you so much that He sent His only Son into the world to die on the cross for you. He did this for one reason: so all your sins could be forgiven and you could go to be with Him in heaven forever.
Satan wants you to believe that God has rejected you and won’t forgive you–but it isn’t true. Confess your sins to God and ask Christ to come into your life and cleanse you from them–and He will. It’s the most important decision you will ever make.