Catholics, know ye that no priest, living or death,
can forgive your sins or mediate between you and God to receive an answer from God if your sins are forgiven or not. 

As the Gospel clearly reads: there is one mediator between God and men: the man Jesus!
TI1  2: 5  For there is one God, and one mediator between God and men, the man Christ Jesus;
TI1  2: 6  Who gave himself a ransom for all, to be testified in due time.

There are sins and there are transgressions. Transgressions can be forgiven, because
there is no information telling us that this is not so, but sins shall not be forgiven
once you have truly repented and have baptized, because so Jesus tells us, through Paul:
HEB  10: 26  For if we sin wilfully after that we have received the knowledge of the truth,
there remaineth no more sacrifice for sins,
HEB  10: 27  But a certain fearful looking for of judgment and fiery indignation,
which shall devour the adversaries.