Isa43:25, "I, even I, am he that blotteth out thy transgressions for mine own sake, and will not remember thy sins."
I have battled with my errors&past mistakes as a believer such that I almost lost my mind. Such times do come when you fail God&because you Love Him, you can't stand boldly in His prescence because you feel unworthy.
We thank God for His love&His word. Whenever God forgives our sins, He chooses not to remember them anymore for His own sake. Such mistakes are wiped-off our account with the blood of Jesus totally. The devil is good at bringing accusations but we must show him the blood.
As long as we have repented&ask God for forgiveness, it is forgotten. Dwelling on past errors&mistakes can make you lunatic,prayer less&powerless. Keep walking in Love&with a full assurance of the fact that your past has been erased with the blood.
Father, thank you for the blood of Jesus Christ.