What do you do for an address?

I am selling my home. I don't know where I am going but I would like to stay in Colorado and buy again maybe in six months but probably a year or more. But, I might go somewhere else. I just don't know. What do I do about an address while I decide? My driver's license doesn't expire for three more years but it does have my current address on it. Should I just go ahead and get one of those mailboxes in town while I can still prove I live here? Then again, how is truck insurance managed?

I am waking up with panic attacks every night about 2 a.m. Please help me with information. I suppose I could search it but what if I get old informtion. The world is changing fast and I feel like I am spinning. That isn't good. I need to find a way to calm down and one of the ways is coming here for good information.

Thank you.