Maybe try toughing it out at Halls. It's perfectly natural to be homesick, but commuting every day is not really a solution in the long term. It's five days into your university year. I'd wager pretty much everyone in your halls is feeling a little homesick. Phone home, , talk lots, and often. Skype.
There are a few practical reasons. Commuting eats into your studying time. And it could be more difficult to go on socials, and make friends at university. It's possible, but it's something to keep in mind.
If you get to a point down the line where it is really becoming an issue, maybe visit home on a weekend, or every now and then.