Sorry you’ve had such a rough start; it wasn’t our intent to release a game that’d become impossible to play properly – it’s not just happening to you.
Having looked into this, doing the choices in certain orders during mission 3 can spiral the game out of control which later impacts everything else; and is why you’ve been bounced around all over the place. That mission was one of the first ones we made at a time when we only first began learning how to make the game and needs vast improving to bring it up to standard to the rest – as this buggy mission is ruining things sadly – but thanks to you telling us about it, we can work on fixing it before everyone gets into the same state.
It remains our intent to get everything fixed properly, so rather than patching with a quick fixes, it’ll need a proper update to prevent this happening again.