Is it hard to get a track/field scholarship?

I'm in 10th grade and it's the beginning of track season. My coach wants me to start training year round soon. I'm decent right now- the season started 2 weeks ago and I beat lots of the girls. I'm willing to train my *** off until senior year and I want a scholarship soo badly because I would LOVE to run track in college. How hard is it to get scholarship? Thanks!!!