College student looking to be financially free! HELP!

Hi everyone, I have been having some trouble lately. I am a full time student and a part time worker looking for side gigs so I can save money when I go to veterinary school (which can put me in over $250,000 in debt). I don’t know anything about stocks or trading or side gigs at all, and I’m looking into affiliate marketing and drop shipping but I don’t even know if these are viable incomes to start with. I don’t have a lot of time to do anything not online on the side since I’m traveling to and from work and school all week long. Can someone give me some good advice? Something you would do if you were in my shoes?

I really appreciate it my Reddit family!