Practitioners do it. Reflective ones think they did.

The unexamined life is not worth living–Socrates

Q: How do I examine myself.

A: Being a teacher, especially if self-consciousness is a problem to overcome, will do it. If teaching someone whose native language isn’t yours your own language won’t do it (why are these bozos having trouble with this, something that came naturally to me and that I neither remember not ever having known nor ever having learned), nothing will.