I don't know about the U.S but in Canada you can take a CFSA Club Coach course or a Supercoach course and teach park... club coach is super easy it's only 180's and switch 180's and basic grabs and stuff, plus it's only a few hundred bucks and there's a bursary fund to if you look into that... you can make at least 15 bucks an hour as a CC and more if you've got a SC... and you get to work at a job you like... but if you wanna make more money you've gotta get into the maintenance side of things or work an an intra-west resort where you work at a hotel in the summer and teach in the winter. I teach park part time at a small resort in ontario because I'm still in high school but if you put in the hours and get certified up you can make almost as much if not more than a sponsored pro, and may even get sponsored yourself.
CFSA website:
http://freestyleski.com/coach/training-programs/
Quest for Gold Athlete Bursary Fund:
https://www.coachesontario.ca/q4g/bursary-program/
if you're in the U.S sorry, but you can always apply for that work visa because canada's better anyway with less guns and more healthcare.