I don't have it in me to finish this semester

I've officially reached my limit. I'm on my second year of med school and this semester has been really challenging for me, I've been working two jobs because my dad had to quit his and I'm basically the only one with income in my family at the moment. I can't keep up with the workload, my physical and mental health are at rock bottom, I'm barely sleeping, I keep getting sick and having the worst migraines I've had in my life, keep missing classes (I missed a midterm last week due to my poor health). I know I don't want to quit med school but this particular school is making me want to crawl under a rock and never come out.

The professors keep dismissing my pleas for help and make it everybody's business that I'm missing classes and on the verge of failing, I can't take the humiliation in front of my peers and I'm exhausted. My uni has this very old-fashioned/high school feel to it, we have assigned seats, a mandatory suit and tie dress code and we even have roll call every single day for every single class, half the classes I'm taking aren't even taught by the professors they just have us prepare presentations and I'm just sick of it. This wasn't my first choice for school and I only ended up there because it was the only one I could afford at the time. I feel like I don't have it in me to finish this semester and have even started thinking about transferring to another school but I'm thinking of withdrawing before the semester is over to avoid academic probation. I can't find the support I need at this place nor do I feel like I'm receiving the education I deserve. I can't take another week, the thought of waking up tomorrow to go to class makes me have a panic attack. I don't know if I should withdraw or stick around till the end of the semester, I'm just a mess right now.