Packing bags = overwhelmed

So I started packing my "Mommy" hospital bag today, waiting to do baby's this Sunday after my shower. I'm 35 weeks and fully aware that baby could come whenever he's ready, so I want to be prepared and have everything just right. I found while packing however getting a little overwhelmed and anxious, some things I can't pack right this second and I'm just feeling like I'm going to be missing something. It's got me stressing a bit. Plus should I keep these bags in the car? In case Im at work or at home? Thought I'd enjoy this part and it turned on me.