I had a similar feelings, even though the circumstances were different. I worked in medium sized companies for 7 years before getting into FAAMG. I thought I’m

I had a similar feelings, even though the circumstances were different. I worked in medium sized companies for 7 years before getting into FAAMG. I thought I’m a decent SWE who knows patterns, processes and can deliver high quality code. First couple months there were hard. My PRs were teared apart with tons of nits, I had troubles communicating as I was embarrassed. Dev process was also very slow with a lot of back and forth. I felt I was doing something boring + doing it so slowly I stopped caring. It was miserable and I quit after a year. Looking back, I glad I did. The company did teach me something, but I also wasn’t compatible with their slow moving culture. Did some very interesting work after I moved on and my carrier skyrocketed.