I’m looking into becoming a diesel mechanic and I’m wondering what’s the best way to get started?

I’m 17, and I was going to try to become a nurse or an EMT, but I’m not sure if that’s what I want to do because I love working on vehicles. I’ve wanted to do that since I was younger, and I didn’t realize the money potential in diesel mechanics until now. So, what would be the best way to get started (in Florida, if that matters)?