Got my first job at a fast food place

I got my first job at this store. 2 days in and it was HELL for me. It is a very social environment. The fact that it's social impedes my performance and things that are supposed to be common sense or self-explanatory, I still make mistakes on. The job itself isn't as hectic but it's very mentally draining. I can feel my coworkers being annoyed by me. I don't really blame them or anything. Just felt sad that I wasn't able to contribute anything and showcase my true competency. It's a job that requires taking an initiative and not just stand and wait on being told what to do. I really feel embarrassed and I truly want to quit. I plan on working on my social skills first then taking a job. How do I work on that?