Your friends set your Overton Window of career possibilities. If all your friends work manual labor, they’ll never think you’d survive in a white collar job.
If all your friends work for large corporations, they’ll think doubling your salary in a year is absurd. If all your friends are entrepreneurs, you’ll all think building someone else’s dream is absurd. In reality, your career possibilities are endless.
Your surroundings dictate what you’ll expect to be reasonable and what you’ll expect to be impossible. And your expectations will precede your reality, so take note of who you surround yourself with. For better or worse, they will brainwash you into believing what is possible.