I hate myself

since February 2014 I have gained so much weight. My doctor said I need to lose about 50 pounds. I'm close to being diabetic. but bothing seems to be working. Ive been on metformin for maybe 2 weeks and only lost a pound. I hate how I look. I don't Feel beuatiful. I can't stand mirrors. I just want to fall off the earth. Saturday night my husband said that I don't try hard enough to look good.  (it was his Xmas party at work and of course I dressed up) and I said so I don't look nice? or do I look nice when i just wear sweatpants all the time. We've only been married since August but I'm so upset that he says I don't even try to look nice. I don't think he thinks I'm beautiful anymore. Falling off the earth as we speak