Why does professionalism/big expectations give me such anxiety?

So I had a interview today for a job a a well known department store and the sheer strictness/professionalism gives me so much anxiety...but also just turned me off, like they wanted me to wear such and such, they read out all the stuff they expected of me (which was a lot as the interviewer talked for a good while.) ...its just maybe i feel like wanting to work somewhere more forgiving or chill tbh... (maybe I'm just lazy, i won't disagree with you there...) where I don't need to wear such and such, and the position i work in is kind of pretty cut-clear, simple and not various amounts of things....it just gives me anxiety when people talk the so many things that's expected of me...it just has to do that the interviews longer than most interviews...i don't know it's just hard you know....my anxiety sucks and when I'm feeling like a lot is being put on my plate and already feeling unsure if i can do good there...it just tears me....