My mother called me a cow!!

So today my own mother called me a cow. What's worse is that she did it in front of my friends. That isn't even the horrible part. My friends laughed. What kind of people laugh when their friend is called a cow...by her own mother!? I got home and of corse was really pissed off that my mom would even think about calling me a cow. I shouldn't even call her mom she isn't good at it anyway. I made some dinner which was really actually excellent you know for cold mashed potatoes, mac & cheese, and whole wheat spaghetti. I haven't really had a good meal like that since I decided to be a vegetarian, and that was almost three months ago.
What really is horrible is that school starts in less than a month, and I am not at the size 4 I wanted to be at. Although throughout this summer I have lost 12 pounds, but keep in mind I wanted to lose 20. I still want to lose 20 now that I know 10 lbs doesn't really take that much weight off, but at least I am at the weight that I was when I ended soccer last October.
Still when the crazy lady that lives in my house called me a cow all I could think of was how I am not good enough. How I am to fat to live. I have worked throughout this summer to get into the mindset that I was fit enough, but now that she has called me a cow. All my hard work has gone down the dusty drain that has been used to many times before.