There are some times when its ok to be jealous.
The mishneh says ‘Kinas Sofrim Tarbeh Chochmo’
If someone has a talent that might entice you, it will power up your confidence and provoke you to succeed as well.
Ofcourse as far as material issues are concerned, it is a problem which is not easily solvable.
Maybe its best that you look at those LESS fortunate. I know its easier said than done but……