I think that if you do not get sufficient rest prior to starting next year, your plan of boosting your gpa might not go as well as you want it to...and once you have fallen behind in a few courses, you will be playing catch up for a long time.
My suggestions are:
1) if your course does end with enough time for you to get away, try to do things that completely distract you-go places, visit people, and engage in activities that have traditionally given you a significant amount of pleasure. If this means changing up the settings that have caused you to feel down, then try doing that! - if you need to do this NOW before you can get through your calc course, then do what you can to get away and reward yourself for pushing through the frustrations- and then remember how good it felt when you look forward to rewarding yourself again before the fall semester starts.
2) make sure you have people you can talk to. family, friends, a therapist?
I think every pre-med and med student probably could benefit from informal (of course, friends and family) & formal therapy (psychiatry, psychotherapy, etc. -whatever works for you).
- anti-depressants can be wonderful if you genuinely feel as if you meet the clinical diagnosis for depression and would benefit from this option.
3) I am not sure if this would work for people outside of me, but I have often put up calendars that my measure my success/track my progress and remind me of how each little step is bringing me closer to my goals. it makes me feel better that I can be regularly reminded that getting to med school is within my reach-even if I have to go through periods are chaotic, tortuous, and sometimes seemingly inescapable!
Btw, I am in the same situation as you 🙂 However, the course that is getting me down is histology and I am going into the sort of year you are (I jumped into histology without the prereqs because it seemed so exciting at the time).
Allow yourself to be silly and laugh and joke as often as possible. Taking oneself too seriously (for good reasons, getting into med school is one huge accomplishment and tough road)- can have very devastating consequences- immediately and long term. we need to find ways to play more. when playfulness can spill over from our non- school lives into our school lives, then a significant step has been made.
I hope you can find a way to do what it takes to get yourself to where you need to be to reach your goals and feel good about the journey🙂!
K