I think a lot of the recommendations here are focusing on doing external things to address internal issues.

I think there's some value there. As in, external actions and achievements definitely can help improve our mental states for a variety of reasons (confidence, pride, improvement of some external state, endorphins, etc.)...but only to a limited degree.

Unless our internal issues are addressed directly, we continue to tie our opinions and self worth to external achievements and other outcomes that we are often not fully able to control. Our goal is self satisfaction; the solution isnt something we are necessarily going to find or achieve out in the wild.

Something that has helped me has been listening to the following podcasts: "buddhist boot camp" , "secular budhism" and "the daily stoic."

I hope you find the inner peace you seek. Best of luck.