There's a lot of "ifs" you're dealing with. I understand not being able to sleep.
Maybe it'd help if you started making lists, lists of options, lists of what you need to do, lists of what to pack for where.
Oh, are you putting the rest of your things in storage? If so, I would make sure the boxes are labeled in detail. That way, if you do realize you need something, it's not a hassle to go get it.
What kind of place are you wanting to rent. Just something temporary like an apartment or room somewhere, or a home?