I would, but now there's free LLM's that can do what I do literally for free and 1000x faster.

Past that, I have no marketable skills that a modern LLM doesn't also have, and better. I very much doubt I'm alone in this. Between now and say, two to five years tops, my employers will know it too.

As I get older I think I get less confident in others faster than I get more confident in myself.

It's pretty freeing to realize that most people have no idea what's going on and that includes who you may perceive is at a high level. (Almost) Everyone has to report to someone and once you get past three levels from the top, it's like playing a game of telephone where the people at the top start with gibberish in the first place.

Do your best, learn every day (or don't), and don't be so hard on yourself. Nobody has any idea what's going on.

been battling impostor syndrome for my whole career, and today i learned that one of the new (not new to the field) people on my team doesn't know how to use excel, the thing i spend like 50% of my working hours using.

worrying for my team and maybe the industry, but very comforting personally lol

This is just describing the last owner of our house.

This helped me be confident I could learn to drive as a grownup: there are people out there who vote for deplorable and appalling candidates and have no self-awareness about it. Yet everyone pretty much appears to be able to drive alright.*

* does not apply in Boston namaste

Saying things confidently incorrect is like my whole identity.

What if I'm indeed mediocre at the thing and this only encourages to believe in my self inflated ego and carry on like normal?

Yes, but do you have plans to do it better and/or are you getting paid?

I am sure the people she is denegrating are comforting themselves even now, imagining she is talking to them.

I know my worth!

...it's less. As in: worthless. Lol

Man I really used to rinse people when I was young.

Hey look, it’s the Dunning-Krueger effect!