how expensive is HRT?

i’m really sorry if his is a common question but i really need to know. i’m still pretty financially dependent on my parents and only have about a thousand bucks to my name and am going into my senior year of college. i’m not out to my parents yet and i have insurance through my school, so i was wondering either if i’d be able to somehow have them pay for it while not knowing exactly what it is or just how much mileage i’d get with my limited funds assuming some of it could be covered through my school insurance.

Edit: I’m in the US