How can you be sorry for something you have not yet done? That concept is beyond a simpleton like myself. Sorry.
You stated that your sins are forgiven up to that point. Future sins are not covered. So some sins must not be covered.
A sin is something that goes against the will of the Father. Sin cannot occur outside of time because ALL creation is subject to time and only creation can offend God's will. Thus, a sin has not occured yet. As a result, future sins are not covered because they don't exist yet.
Christ's death has the potential to forgive ALL men's sins. However, we know that ALL men will not ask for forgiveness. Sin is not covered until it is repented of - it is God doing the forgiving. Even Jesus does not presume to demand the Father to forgive us, because HE intercedes for us - HE ASKS FOR OUR SAKE that we be forgiven. Thus, even despite His death, Jesus continues to offer His once completed expiation for the sake of men who beg for forgiveness, as 1 John states. MAN must ask GOD for forgiveness - which is what Jesus CONTINUES to do. Present tense.
Regards
Then if you sinned right before you die, where would you go? Would your sin be forgive?