great way to start the morning of my 1st fitting....

i have my dress home with me already.. so i go take it out to try it on..ya know to make sure it still fits before i try to put it on in the store in front of people since i havent tried it on in a few months... so i call my mom out to help me zip it up.. big mistake. she gets it zipped up fine, it still feels the same as the day i bought it. but then she starts telling me how i gave up on myself and i was doing so well with weight watchers.. and calls me a porker and sh*t.... like i need to hear this today?? i know im fat, but why the hell did she need to do that to me on the morning of my 1st fitting??? so now i will be upset and even more self conscious than i already am while i try the dress on in front of strangers. she is not thin herself.. but she recently lost 20 lbs on jenny craig, so she thinks she can tell me to lose weight and call me a porker now... she has always been like this too.. she tells me she is just trying to help me.. but all it does is make me even more depressed and sad... she doesnt know how to help!!! her definition is the opposite of help.