Lift your burden up to God, NoGrayZone, in all humble sincerity. Ask for His forgiveness, profess your belief in His Son, that He was crucified, died on the cross, rose on the third day ... a sacrifice to end all sacrifices, so that you might be forgiven of this sin and be victorious over the death entered into this world as a result of the first sin. So that all mankind who believes on Him might be forgiven, and have eternal life, those who believe and follow HIm.
It seems like the easiest thing in the world to do, in hindsight. In reality, for me, it was like a dam breaking, being literally broken and desperate, driven to my knees to seek it. I was too proud, it seemed silly until my whole world collapsed around me, or so it felt at the time. Having nowhere else to turn, I turned back to God. I'm not unique in that regard. Contrition is a very hard-earned thing for many.
It doesn't have to be that way for you, though. Just remember, humble sincerity. Just ask, ask Him to change your heart, that you might endeavor to sin no more. You'll stumble, yes, but remain repentant and keep trying.
That's all any of us fallen creatures are capable of doing. God does the rest.
**Lift your burden up to God**
I prefer to say “Lay your burden down at the foot of the Cross.”