He is faithful and just to forgive us our sins
You can experience God's love and forgiveness! If you have truly asked Jesus Christ into your heart as Savior and Lord, God has forgiven your sins.
What happens if your sin once you are a Christian? Dr. Bill Bright, the late founder of Campus Crusade for Christ, had a concept he called "spiritual breathing." Just as we breathe out bad air and breathe in good clean fresh air, so we can "breath out" -- confess -- our sins to God. We can ask God for His forgiveness and "breathe in" -- receive -- His great forgiveness and love.
God loves us and each day wants us to walk in His forgiveness and love. If you have sinned, then confess your sins to God. God can hear and forgive your sins.