Rest well friend!
Regarding a PhD, I am a Mexican who was "just ok" in a no-name Mexican college where I studied my BSc Computer Science.
I got a scholarship for the UK to do PhD in CS on a 'red brick' university. It was amazing and life changing. So you being on eastern europe surely can easily get somewhere good as well.
Dont give up your dream! Specially when your dream is so fucking profitable. (If you told me it was arts or something similar I would have doubts).
Only years later did it occur to me that it might have simply been burnout, and with the right kind of coaching I might have been able to continue. So that's the other bit I'd suggest, besides just taking a rest: find some people who can advise you about this and who you have a good connection with personally. Don't just go through it on your own. Something that may not be obvious to you at all might be the first thing to occur to a more experienced person with your best interests at heart, and it might turn out to be a big deal. You don't need to deprive yourself of help.
That said, consider that with a career in medicine, you could get into research aspects, learn some machine-learning on your own, and apply that to your medical research. I believe it would be much harder to go in the other direction.