"People often say "I know God has forgiven me, but I can't forgive myself". They are anchored in the past and can't find a path to peace. God never says "forgive yourself". We can only let go of our past when we recognize and accept the forgiveness provided by Christ Jesus. If God has released us from our sins, it just makes sense that we do the same. Your sins have been taken away and God remembers them no more.