Are you jealous of people with higher salary better career better lives?

I (27 y/o) always compare myself with my friends with better jobs higher salary and have boyfriends who spoil them while Im still single and working with much lower salary its like I only work to just pay bills can't even have vacation or buy luxury. I dont have savings either because I support my family but even though my salary is low I can still help my family plus I support my nephew his parents are not around. His mother (my own sis) died and his father is in rehab so Im basically acting as his parent. Whenever I see my friends on social media that they are going to concerts, buying luxury things and having a vacation or makes me feel jealous because I can't even afford those things they have better paying job and I feel bad not even having my own savings. Like I feel like Im jealous the most is them having better jobs and higher salary. Like I feel like Im left behind.
Are you jealous of people with higher salary better career better lives?
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