anybody know any ways of making a little extra money, preferably baseball related

Ask your local pitching instructor if you can catch for him, good way to get some money.

A lot of leagues could use scorekeepers, or concession stand workers

please any more comments even if its not related to baseball

well you can try giving batting or pitching instructions privately

i’ve thought about doing the private lessons thing, but im only 19 years old and do not think I have enough knowledge about pitching that i will need

Contact your local Babe Ruth or Cal Ripken leagues and find out if they are need of umpires. You will most likley have to attend some clinics if those leagues pay umpires.