So I've been looking at questions on QBank, and is it just me or are the questions on QBank just incredibly picky? I'm increasingly becoming discouraged with it. Any simpler experiences????

Just keep doing them and reading up on the things you dont understand. Better to have Q bank Picky and Step 1 not as picky.

I think that's the qBank thing- to be hard and picky so you'll think it helped you. What qBank doesn't teach is what's really required for the Step- critical thinking and interpretation. Don't sweat qBank but the best advice for the step is work on "how" they can ask stuff (in addition to the 'what') and get a good night's sleep.