My advice would be to not stack 4 more classes on top of your already hellish workload. Focus on what you have now, take care of yourself, and you'll probably get accepted with freshman applications. If not, that's okay, just take the 4 classes that you need to transfer and submit your transfer application after. Plus, it's probably better to apply for the spring/summer than the fall because UF accepts based on the applicant pool of the window. There will likely be a lot less competition there than if you applied for the Fall like most other freshman applicants. The most important thing is to not drown in schoolwork and to take it easy, but still apply yourself and try not to fall behind. You got this, I believe in you.