How do I know if I should switch from my current field to medicine? I'm 23 and not in college anymore

Pre-Med & Medical School Careers in Medicine
92

You can I prove your chances by becoming a strong applicant.

Why do I have to prove anything to anyone for anyone to believe in me lmao? Why can’t people just fake their belief in me, at least? Like at least friends and family lmao??? No luck there!