I hope to get into medical school after getting my B.S. in biology from UC Davis. I'm afraid to fail

Your study habits and grades make a difference, along with those MCATs.

You need to prove yourself in all of your classes.

So, you plan to avoid “non-preferred” professors throughout your 4 years at Davis???

This does not bode well if you hope to gain entry to med school. Is that what you plan on doing in med school, avoiding what you don’t or can’t handle?

My DD just graduated in June from Davis. She received a degree in Biological Sciences, NPB. She and her friends had to take classes they didn’t like, but they had to perform well. A number of her friends couldn’t handle the coursework and grades in BiSci, and changed majors.

On graduation day, she graduated with 1000 peers, most of whom are hoping to get into med school. Each year will be the same. That’s just at one UC. Avoiding a prof means you are trying to play the system. It can and will backfire.