Advice from a military wife? I don't know how to get through this..?

Background: I have always been a person to plan things. The unknown makes me uncomfortable so I avoid it as much as possible by planning things out. Even when things don't go as planned, I at least had some idea of what could happen and can change plans to fit it. That's how I get through things... by making plans and sticking to them as well as I can.

Now comes the hard part. I recently got engaged to the man I love more than anything. He means the world to me and I can't wait to spend the rest of forever with him. The catch? He's in the military (Army Reserves). About three months ago his unit was informed that they MIGHT deploy this year. Since then it's been back and for with no definite decision. We talked about the army before we got engaged and I knew that it would be hard... but I didn't think it would be this hard. I can't plan anything... where to live, when to transfer schools, when to plan the wedding for... because we have no idea if he'll be sent somewhere at any moment. I don't know how to get through it... I mean obviously we're in it together and I know that somehow it will work out. I really just need some advice to get me through it... I don't know how to live without planning things and now I really can't do that.

I don't want to sound like I'm just complaining. I wouldn't trade him or our situation for anything. I just need some help... some advice from someone who's been there. Anything is appreciated, thank you!