Any insights on how to stop thinking "the grass is always greener on the other side"?

TLDR - How do I stop becoming envious of all my university friends/acquaintances who now have prestigious jobs on Wall Street?

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I interned at 2 top BBs right out of college, and both experiences were so terrible and discouraged me so badly that I changed career paths and did not pursue the Wall Street finance route.

I work in pharma now, and I make six figures, however, whenever I see a friend or acquaintance whom I went to university with updating their LinkedIn title to "VP or Director at **insert prestigious bank or hedge fund here**" it gets me a bit discouraged and makes me think maybe I should have stuck at it and followed that career trajectory.

Anyway, I truly love what I do now. I just bought an amazing house, and I work fully remotely. The freedom I get for how much I get paid is amazing, but it still kind of haunts me knowing that I could have been in those positions to get those titles and the compensation that comes with it. But I fucked up and quit.

To give an analogy, I feel like I have the 3 series BMW now, but everybody else I know is driving the Ferarri or Bently. Kinda silly analogy I guess when I put it like that.

Any suggestions from some professionals in the industry that can help me get over this, or sprinkle some S#!t on the what-if scenarios that I can't seem to let go of?

Thank you in advance.