Well, I have an update on this. I was deciding on quitting if he wasn't going to fire me 'cause I'm just afraid now of doing or deciding anything and have it blow up in my face again. But the next day he did fire me. I liked the job really, but I felt like I wasn't reaching the expectations enough, which lowered my self esteem and was really triggering my SA. I tried to control my SA and communicate to the best of my abilities if I had any doubts like I was told, but that was basically all the time and I didn't want to be annoying about it or didn't want to look like I didn't know what I was doing especially when I worked there for months now. I can still remember the times when I asked something to my boss or one of my coworkers and I either get a look or a response like I should know. I guess small moments like those and the mistakes I've been making just build up and my SA started overwhelming me on occasion that I couldn't think, focus, or remember.
To give insight on my now ex-job, I was an assistant to a man that custom painted shoes and on occasion other stuff, too. It was my job mostly to prep shoes before getting painted and do paint touch-ups. And the thing that got me fired was incorrectly prepping a mini fridge (basically melting the plastic door frame with acetone) to be custom painted. We've done this once before so I was certain of doing the task. Apparently, I wasn't. As I mentioned above, that week my SA was getting to me that my mind was out of it and thought that the door of the fridge was to also be worked on like last time. Except there was no last time cause the door was never worked on like I thought. And that's that.