I think i will study anatomy/physiology/genetics/micro asap.
OMG, please don't. Just don't.
Look OP, real talk, I came in to med school with a BA in Philosophy, and BS in Biochem, and a MS in Bio (but heavily Biochem focused). I could rattle off every amino acid, draw the Kreb's cycle cold, and give you a 2 hour lecture on RNA secondary structures plus their roles in cancer and viral biology at the drop of a hat. All of that has translated into a grand total of 4 direct exam questions so far. We covered my entire UG and MA biochem curriculum plus >2x again in 15 weeks. There's no way you can prepare for that because you don't know what you don't know yet.
Hands down, the most useful class I ever took before coming to med school was high school Latin, because anatomical/clinical terminology is mainly in Latin.
So, if you feel like you're going to lose your mind if you don't study something, then learn some Latin. "Pollicis" = "of the thumb", "Levator"="a thing that lifts something else", "Salpingo"="tube", etc. Do that for your foundation, and it will make studying everything else easier. Nothing else will make any kind of realistic dent.
Plus all of the "figuring out apartment situation" is killing my time.
This is a much more pertinent thing to work on right now. Sort this and any other life situations/paperwork/vaccine requirements.
Figure out a good low-key way to relax/destress, i.e. take up a hobby, sport, etc. and develop some good habits that will keep you from burning out.
But for the love of all that is holy, DO NOT spend the rest of your summer with your nose in a textbook.