My OCD in packing items

I'm leaving for a quick trip to Arizona tomorrow for my cousin's wedding. I realized today, just how incredibly OCD I can be when I'm packing things. I have to have everything that is mine in MY luggage. My mom has offered countless times to put things of mine in with her stuff but I can't stand it. I gave in to her offer of taking my dress for the wedding and putting it in her garment bag. It kills me. I don't know what it is about not having control over my stuff that bothers me so. I just like knowing that it is safe. Anyway, I leave at an ungodly hour tomorrow morning but hopefully I'll be able to have some rest and relaxation this weekend. We'll see...