As a trainee in my very first company I was comparing myself to my mentor too much.

And I just couldn't compete.

He had deep knowledge, was more productive, had amazing skills in different departments and his side projects were astonishing.

Turned out: I wasn't expected to.
Turned out: Even among nerds, he was an extraordinary unicorn. Other developers in the company had huge respect and were humbled by his skills.

Yet nevertheless, I doubted my career choice when I was struggeling for 4 hours on a seemingly tiny problem, then when I approached him he would come in and write the code down in 15 minutes.

He made it look so god damn easy.

Little did I know that the main difference between him and I was: experience.

He had much more of it. I still had to make some mistakes and he greatly helped me avoid some of them.

It really helped me that one day he talked to me and set my head straight that I wasn't expected to perform on the same level as him. He was getting a salary, I merely some peanuts, after all.