God bless you, Robb. My prayers are with you.
This thread has been really interesting, and the willingness of some to open themselves up here, followed by what I perceive to be true concern and compassion is extremely refreshing.
I don't know why it would have surprised me, but it did, when confessing to the priests (Marianists) at my local Catholic parish, I was never told to distinguish between mortal and venial sins-just to confess my sins, whatever they might be, and however many of them I could remember. And the confession was always finished by "...and all those sins that I cannot remember". Only once was I warned about verging on scrupulosity when I was confessing each occurrence that I could remember of each sin, rather than just saying something like, "I was judgmental multiple times." God knows each and every sin we commit and each and every time we commit it. It's not for His sake that we confess our sins, but for our own--we go to the Doctor with our wounds and illnesses and He heals them--if we let Him.
As for religion being meant to "comfort" us---well, all's I can say is, wouldn't that be nice! Maybe "religion" is supposed to do that, but some (like Fr. Tom Hopko) would say that Christianity is not a religion, but a relationship with a Person, that Person being Christ. And we all know how difficult relationships can be at times