Sometimes conviction can be a difficult pill to swallow but it is a necessary part of our Salvation package. Without it we would only set ourselves apart from God. That is the opposite of being set apart for God’s use.
Conviction works immediately and should move one to repentance. If you continue to feel extreme guilt after you have repented (or turned from sin) that is coming from you not forgiving yourself or the enemy himself.
Understand this…the cross was enough! What Jesus did to save you, to wipe your sins away, to cause God to forget about all the yuck of yesterday, to cause God to see you without blemish, to cause God to hold not one fault over your head…it was enough.
There’s nothing else you can do to become more forgiven. Forgive yourself and rest in one of the benefits of Salvation: freedom from condemnation. (Romans 8:1)