Anything that would make my resume standout. I do not have that "wow" factor that screams, "I want to work with this guy." As a result, even for the jobs that I am qualified, I can't get an interview. It is average. Super average.
Plus I feel that no one wants to work with me. Current work environment has made me question my skills. I believe I am sub-par at what I do.
I have a PhD, ~2000 citations, I earn a decent amount of money as a contractor doing ML research and development at startups and a large company, and I also feel subpar regularly. Although people don't usually talk about it, it's probably very common.
Remind yourself often of the achievements you are proud of.