Is my board fucked?

I've been skating for a couple weeks now after buying a board during lockdown and not taking learning seriously, until recently. However, I realised a couple days ago that my bushings have seemed to ripped / exploded, I only tightened my trucks when I first got the board and I still feel like it's not even that tight. Is it worth buying new ones? Also, I think my bearings are starting to rust and idk if there's a way I can clean them or if buying new is my only option?