How do I stop being an envious and lame person?

I say lame because honestly I feel like a loser or weirdo feeling jealous. I have a really good friend and I wish them the best. But i’m going through a season of STRUGGLEEEEE. With dating being awful , school, and work. On top of that I feel like i’m not having much fun in life. Like going on trips or what not. In comparison she’s gone through her own struggles but her life’s is finally smoothing out. Doing great in school, love, and work. But I feel jealous and kinda like “why not me” and honestly it’s not cute on my behalf. I want to better myself ofc but not be upset when someone else life is well. Anyways all to say, if anyone has any advice I would greatly appreciate it. thanks!