Freshman Year is a cake walk at most schools from what I have heard and from my experience given that you have a solid high school education. This a period you need to take advantage of if you want to ski. Some of my most successful semesters involved me skiing 1-4 times a week. Its all about time management and discipline. Anyone who told you taking your college education seriously means you won't be able to ski probably lacks one of the two if not both.
College is nothing like high school. If you work hard and manage your time properly you can set up periods of up to 7 days where you don't need to do any school work especially in lower level classes. A lot of intro classes have content you can learn by never going to class and purely online. Also depends highly on how difficult your curriculum is. A lot of kids are learning things that I learned freshman or sophomore year and they will ask me for help. I'm just like bro I learned this freshman year I don't remember it. There are college classes however where the class is worth 4 credits, but you have to spend literally 12 hours a week in the lab, not counting the prep work, lab reports, preparing for tests quizzes and on top of that hours of homework.
You shouldn't base what college you go to based off whether or not you can ski there or not. Whoever said this is 100% correct. You should pick the school that you think you will do the best at and set you up for success after school.
Also people who have some of the most successful careers consistently preach that after your first job, what school you went to is worthless.