In fact, many times we are not frustrated because of our lack of ability, but for other reasons.
It's hard to build trust with a leader, but it's very easy to break it, and often one sentence is all it takes.
Some people say: life is life, work is work and the two should be distinguished. Indeed such a theory is not a problem, but who can really emotions can really be completely unaffected?
Treating work as an errand, as a form of torture, will only continue to consume you.