I just got married a few weeks ago. I was insane and couldn't hold an intelligent conversation for a week before the nuptials.

You will get over this. I wish I had relied on all the people who offered to help instead of insisting on doing most of it myself. What happened was I ended up running out of time, and my sis and BFF had to pull double shifts helping me get everything done, so I ended up feeling more overwhelmed and guilty that I had needed them so badly they couldn't say no.
So, farm out some work if you can. I remember wanting desperately to go running by myself for an hour to get away, but because I had procrastinated on things, I had no time and wouldn't go while my girls were still working on stuff.
You have taken off a great deal of weight, and everyone is going to think you're beautiful anyway. Bribe your friends to bring you healthy food! If your Mom brings you crap, cry and and ask for a salad. These are times of Great Stress! Do what you have to do! Power to you, my Sister! POWER!!