I did everything “right” but I’m miserable

Graduated “cum laude”, went back and got a Masters. Countless sleepless nights studying, sacrificing lots of partying and fun, isolation, etc. All that hard work and sacrifice was because I thought on the other side it would pay off and be better.

Well after 2 years on the “other side” I’m slaving for a paycheck that’s never enough, living the same exact day Monday-Friday, feeling drained 24/7 means I can’t fully enjoy my hobbies during free time. Sunday scaries are real and forget about dating, I’m surviving at this point. Have had 2 mental breakdowns crying and have screamed in my car several times driving to work from the stress and mundanity of it all.

What was it all for? Why did I work so hard if this is my life? Existential crisis? I’m very lost.