Here is a fun video you can share with your friends about how tough it is to compete with legitimate pro baseball players at the MLB level. While this isn’t specifically about how you can make a team out of a tryout camp, at least your friends will have a higher degree of respect for your attempts especially if you make a spring training roster.
Become aware of upcoming tryouts by joining the notification service here: Independent Minor League Pro Baseball Tryouts
If you need some help increasing your 60 yard dash speed times, arm velocity, vertical leap ability, hitting power or improve your muscle mass for any professional baseball tryout (or private workout) then here are some resources to help you: Resources for improving your chances at any pro baseball tryouts