Gosh, I feel like this could be great, but unfortunately, I just don't get it right now. I think I have a basic idea of what is happening after reading the tutorial three times, but even then, the game just throws all this stuff at me so quickly that I don't really have a chance to catch up with anything. Sure, I can pause whenever I pick up an item, but then I can't manipulate my bag while in paused state and it's also just generally relatively cumbersome.
My personal preference would probably to just turn this into an entirely turn-based strategy game, but that's probably because it's one of my two favourite genres of games :D If you don't wanna go down that direction, simply slowing the game down a lot in the beginning would probably also help a lot.