You'll be fine!! I remember before moving to college I couldn't wait to get out of my town, but as soon as my parents left after unpacking I got so homesick! It was worse because my roommate didn't move in until a few days later

I was so lonely those first few days (ok not really, I made friends on my hall really quickly because of that!).
One tip if you're feeling homesick those first few weeks: Call home often, but not every night! You might be tempted, but distracting yourself will help you realize that being away isn't so bad!
Good luck once again!!