Suppose you did everything you were supposed to do to become a doctor. You studied hard in high school, and went to a good college. You again studied hard, and majored in something life-sciency. You took the MCAT, and did fine. You applied to a bunch of med schools. But then, for whatever reason, none of them admitted you.
Now what?
EDIT: Let me just add that I myself didn't fail to get into med school. I'm just asking.
Michael Chrichton, author of Jurassic Park, attended medical school but always wanted to be a writer. IIRC, he went to medical school at the behest of his family who had no faith that he could make it as a writer. His medical training helped make his writing especially good because he writes very plausible stuff, instead of hand wavy "Uh, radiation explains away my plot hole!"
https://en.m.wikipedia.org/wiki/Michael_Crichton
So, what do want to do with your life? Why did you want to go to medical school? Was it family pressure? Were you after social status and a big paycheck? Or do you really want to be involved in making people healthier?
Have an honest heart-to-heart with yourself and base your next move on those answers. If you really wamt to go into medicine, nursing is an option. If you really wanted prestige and money, then maybe law is a good alternative.
The right answer here depends on a lot of factors you did not detail in your question.
Best.