Let'say I was baptized in a Protestant church (for example, Presbyterian) that is in the list of churches whose baptism is recognized by the Catholic church (such as this list). But let's say I'm increasingly desirous to be Catholic and through self study came to believe all the doctrines of the Catholic church.
Main question: Can I go to the sacrament of reconciliation to confess my mortal sins and receive absolution before being confirmed?
How about if my status changes to be a catechumen (through the RCIA program) but not yet confirmed until next Easter. Does it make a difference?
If the two situations are different, what is the explanation?
Is the answer up to a particular bishop's discretion / policy, or is it governed in global Canon Law?