How do I deal with a best friend who is now an overcontrolling roommate and still be friends afterwards?

I moved in with my best friend of a few years, only to find out that we rub each other in completely wrong ways. We are both stubborn and don’t communicate well when it comes to living situations. We are fighting all the time and it’s not fun living there. It’s putting a strain on our friendship and I want to work it out but it seems that neither one of us can do this as we’ve become to biased in our perspectives against the other person.