what to do if you lack critical thinking skills but are also self aware of it

hello everyone! i am a 27F and in the last few years i have realized i am kind of an idiot, lol. i value intelligence, but as i’ve gotten older i realize that i am kind of dumb— it’s like im air headed and lack critical thinking skills compared to everybody else i interact with. the issue is, im horrifically self aware about this and as much as i have tried to change and improve it’s gone nowhere. ive been dealing with this for years, but my self esteem since i’ve gotten a new job in the last six months has absolutely tanked because it’s even more obvious in the field that i am in. i have tried everything, being more “invisible,” educating myself more, just trying to laugh off whatever embarrassing thing i did in front of my coworkers, etc.

i guess it’s just an extremely hard pill to swallow, and i have got to figure out how to not feel any lower than i currently do because i am at rock bottom, lol.

thank you in advance!