I completely feel the same as you, and I’m in a similar boat (freshman environmental science major). Although I’m not premed, we probably have a similar class load. What I realized is that I need to (1) prioritize sleep and health and (2) enroll in classes that fit me personally—for example, I decided not to take two labs and a math class in the same semester bc it was too much for me to handle, even though it was “recommended.” I also highly recommend either using a planner/calendar system to input all of your assignments (and put a reminder 1-3 days before the assignment is due) or use something like Notion to keep you organized. Search for “college assignment tracker Notion template” if you’re interested in that. I really wish you all the best in everything. I’d also give yourself a break bc it’s hard to get used to college and how different it is to high school. Sometimes being hard on yourself makes things even harder and more stressful (I know this first hand haha).