I’ve been following anime and manga for years, and I’ve found that keeping a profile on animenewsnetwork profile helps me track what I’ve watched. I mainly stick to shonen and the occasional seinen—stuff like One Piece and Berserk. The community there is great for discovering new arcs or underrated mangaka. One thing though: I don’t update my list as often as I should, so it’s always a bit behind. But it’s a solid way to remember my favorites.