Schedule classes for MWF or TR during the spring semester since that's when you will be skiing most. Also take an extra class(or a harder class) during the fall so you have a lighter course load during the spring. Then you will have either 4-5 free days during the week. Dedicate at least 1 free day to getting work done and make sure to do work on the days you have class. Then you will have about 3-4 days per week to ski!
To be honest, skiing in college isn't extremely difficult. I find myself doing better spring semesters academically since skiing really forces me to stay focused. School is a big priority for me, so it motivates me to get all that work done so I can ski. I know with some people, they really don't care about school so they end up blowing it off. If you have any motivation at all to do well in school, you will adjust and find time! Freshmen year is just that, adjusting and figuring shit out.
As for the progression part, I mean that really all depends on you. If you go out and make it a priority to progress, you probably will! . Honestly just go with the flow and see what happens. No need to stress yourself out over skiing, ya know? Anyways, good luck at uni next year!! I'm sure you'll be fine!