Midoriya Izuku Biography
Izuku Midoriya is living proof that you can achieve your dreams through determination, hard work, and approximately several thousand hours of enthusiastic note-taking about other people's superpowers.
Born without a Quirk in a society where superpowers are basically the admission requirement for being interesting, Deku somehow looked at the world's strongest hero and thought, "Yep, that's going to be me." Sensible? Absolutely not. Inspiring? Unfortunately, yes.
Then he inherited One For All and immediately discovered the tiny downside of receiving an incredibly powerful Quirk: his own body was not exactly thrilled about it. His early combat strategy was essentially "punch extremely hard and deal with the consequences later," which resulted in more broken bones than any aspiring doctor could reasonably tolerate.