Ever notice how people who allow themselves to get jealous of others - ALWAYS remain stuck too. .
Jealousy is such a destructive trait to possess and the person experiencing it doesn't realize it serves them in no manner at all. It is blocking you from change.
I can always sense jealous people. It permeates from them. If you do it, SEE it and work really hard at reframing it into a reason to do more and be better.
I never see truly successful, busy, focused, fulfilled people get jealous of others. In fact they do the opposite - they use them as a source of fuel. As inspiration to learn more, be more, think differently, embrace new changes and so on.
I see this with the fitness and health community. Anyone who I know will succeed always does because rather than focusing on LACK, norms, conditioning, jealousy or excuses. They use people doing it and succeeding as a teacher.
Be a student again. Every damn day. :)