It sounds like a lot, but you will get into a rhythm within a month or so of school. We all have something that works best for us, so I can’t tell you how to live your college life, but I’ve managed to do everything you said you need to do (keep on top of school, exercising three days a week, sleeping enough, making friends, etc) minus going home every weekend; I live really far away from home(6 hours), so I only go home during breaks plus a few extra weekends throughout the year.
But it’s doable. You need to be focused, organized, and disciplined. Use an agenda book and plan your week out each Sunday. But don’t be discouraged if occasionally you don’t stick to plan. Don’t turn into a robot!