I am never jealous for long myself i get over it pretty fast. I wouldn’t mind making as much money as a doctor I am jealous of doctors. I get tired of being stuck behind the computer. Maybe I can try to be a manager if I am not talking to myself.
I had a friend years ago that was way out of control with it, he drove his GF off by his controlling ways
She was not allowed to talk to other men, cover everything up so none of her body was showing etc, was crazy. he even made her cut up a nice evening gown she bought for a xmas dinner cause it showed to much
So a little jealous displays love, a lot will drive off your partner
It’s an extremely common human emotion. To feel it is normal in this fallen world but the goal is to never let your emotions run you.
Your rationality has to be the leader of your mind because it’s in line with the objective truth and not just your own subjective emotions
You can develop this I think from developing the virtue of wisdom. Which I think comes from solitude and letting your mind settle so it can think clearly
If ones mind is like muddy water, if they sit in silence and solitude for some time their minds will settle and all the dirt will sink to the bottom leaving clear water (or a clear mind).
Developing the virtue of fortitude might also help you to have more confidence as well so you could chip away at the problem from two angles. Fighting jealousy and being more confident.
In my understanding “work” is the primary action for developing fortitude. You already seem pretty confident to me tbh but something like exercising could also give you that boost of confidence. It makes us less emotionally over sensitive.