I was expecting a very good letter of rec from a professor ive been with for over 2 years, but me and him recently had a falling out due to some issue. Now I'm kind of short on letter of rec options, and my school (UCSD) doesnt have a premed comittee to write letters. It's also my last quarter at school, so i dont think i have the time to get to know another professor well enough to ask for another letter, what should I do???