Surgery is Friday, stressing out!

I feel so freaked out! I've been wrapping presents and doing laundry like I'm losing my mind. I'm having an LAVH w/ a tummy tuck this Friday. I've only known about the date as of Monday 12/3 so I haven't had much time to prepare.
Mom's flying out to help dh with the kids, but I still worry about them getting along without me. Mom can be a pain in the *** if you know what I mean.
How can I calm myself down? Anyone sharing the same date with me? I know this is the right decision but I'm really nervous.

Having aTVH and TVT done on Fri also. I'll have to ask about your type because, if I can get the tummy too why not? I"m freaking out too, I've only had 4 children. Piece of cake huh? All my kids are grown, great husband to take care of me. Just not interested in alot of pain and problems I can't afford. If you know what I mean. Hopefully everything will go smoothly. If anyone has any last minute ideas Please share.