Honestly, with that idea, it's just better to stop all socializing whatsoever. If people more successful or capable than you bring you grief and hatred, do you feel validated by finding people that are "beneath" you?
And you suggest to deliberately make it so that only "worser" people remained in your FOV?
It maybe removes toxicity and bad feels from your environment, but it will mutate you into a very toxic person with time, that one is guaranteed.
I'm afraid it maybe even already does, since this whole "people more successful than I fill me with resentment" angle reeks of entitlement, if we be blunt and honest here. I'm really surprised to see so many people agreeing with that mindset.
However you feel about that this does nothing but HIDING your problems, not solving them, and making them fester and grew worse with you being unaware of that.
I follow a guy who went from making amateur horror shorts in his basement in Sweden and using "Pony Smasher" name on Youtube to being a full-blown director filming Hollywood superhero blockbusters. How that can be anything but sending the message "if he managed, this means it's not impossible and I have a chance as well, however small it's not zero!" There are already many people who are better than me. Hundreds of millions of them, at the very least, including basically everybody on this very forum. And yes, sometimes often I feel like shit because of that. They all have independence, jobs, friends, family, kids, felt a significant other's touch, or are just living in a civilized country with a life expectancy above 65 years and citizens that are capable of smiling. To "self-care" in the way you suggest, I'd just go into a complete isolation, and I know how that will end - it involves very high places and the force of gravity. Locking up in your own little echo chamber is not a solution, it's not even healthy.
And furthermore, following popular artists is USEFUL. don't follow them to observe their success, follow them like a leech, like a vampire stalking from the shadows, greedily and readily absorbing every bit of wisdom tips and experience advice they drop accidentally or intentionally like the driest sponge on this planet!