Well I'm an engineering major and I definitely find it hard. The math and science classes take a lot of my time but from what I've seen, regardless of your major if you are going to school full time your gonna be pretty busy. The main difference is the kind of work. With math and science, sometimes I have to solve a ton of problems before a concept will start to make sense to me. Whereas the I'm sure the education type classes are going to have lots of papers and reports which I'm not very good at but I know some people can absolutely dominate a paper in no time. I'm not sure if any of this makes sense, but the bottom line is that if you want to ski you can make it happen, you just have to manage your time pretty well.
good luck