system
Given the following post, respond as if you're commenting on Reddit:
human
Do I apologize to my professor? How can I get over this?

I normally do very well in school (3.5ish GPA) but this semester was absolute trash. I had an class that had a lab report each week that took me roughly 20 hours to complete from start to finish (the professor required perfection, or he would simply give you an F). I also work as a tutor for our college, roughly 28 hours a week

This meant that I wound up skipping lecture in my microbial genetics class. I know the professor from prior semesters and I've always done very well in her class, but I basically submitted garbage the entire semester. I actually had a panic attack during her final, which I left 1/3 of blank.

For some reason, I felt the need to ask her if I could re-take that final. She, of course, declined. I wound up with a C in the class. 

TLDR: My questions are ...

1. Do I apologize to my microbial genetics professor? I never should have asked her if I could re-take the exam. I also feel SO BAD for how horrible my attendance was.Edit: Okay! my plan is to reduce my academic workload next semester and endeavor to do better in this professors class next semester. I might apologize when I see her again in the summer, long after grades are put in. 

2. How can I recover emotionally from this semester? I will have a 2.5 GPA for this semester, which removes me from the Dean's list. I basically want to die. I probably won't make it to physician assistant school now, and I'm having trouble coping. EDIT: Upon reflection, this second point is not based in reality. I'm gonna be fine, it just feels bad right now.

Edit: I want to thank everyone who responded. I definitely feel better now that I have a plan. For the most part, you guys were level headed and kind, and I really appreciate it.
gpt
That tutor work of 28 hours a week is, well, sort of nuts. That's over half of a normal work week, it's not really a surprise you won't keep up with the top of the class, assuming you're not a part-time student. I'd say halve that, preferably twice if you can, and just do your best in classes going forward. Going into some debt is quite preferable to not being able to complete your studies properly.