I am a guitar player and I've been envy of other people for a few years, for me, was hard to stop being envyous or jealous when I saw someone being better musician than me, but last year I commit to improve myself and work to be a better person.
I was toxic, when I was watching to someone playing on a stage I was permanently looking for mistakes or start to criticize his tone or posture etc, just because I couldn't stand that person doing things that I cant.
This year I'm studying harmony and practice a lot more, I want to be better and someday be a musician that can play with other musicians. Now I can see another musicians and instead of feeling envy I feel inspired by that person.