I did a lot of driving forklifts, construction, moving, factory work, etc when junior in the job market after graduating near the top of my class with strong internship experience from a top 10 engineering college. Adjusting expectations is important. If you start with the expectation that all you will have is a pot to piss in then it is all up from there. Things may never look up, but when they do, I've found a lot…
My academic career was always revolving around the top but never quite at the top. So eventually I gave up on investing more effort for diminishing returns and focused on having an advantage the others weren't pursuing. I started working very early, with some embarrassingly shitty jobs at first, each of which allowed me to get the next slightly less embarrassingly shitty job subsequently and so on. I'm glossing over what could have been a long string of lucky breaks that probably made all the difference.
Anyway, by the time we finished university my colleagues who were right at the top got catapulted into the working world all the way to the level I had years before. Not quite ground level but not far. And I can still see that handicap in most of their careers even now, decades later.