Right now a majority of it just goes to the magic box inside of the bon fire. Should I continue my first playthrough blind or is makes more sense to start looking at the wiki?
Blind is fun. The game is designed for replays, so don't worry about not 100%ing it first time or whatever.
There's like one obcscure area to get to, and unlocking the DLC means paying cloooose attention to item descriptions/checking every nook and cranny to figure out, but it's possible.
The only thing I missed in the series was an optional late game area on 3, because that was super obscure.