Self Control... What is that?

So yesterday i woke up and consumed about 500 calories of toast for breakfast. Felt like a fat ass so I went for a run and didnt come back until i burnt off those calories. Felt better and decided that was enough for the day. Then I went and picked up my mom from work who then decided we needed to go to freaking Dairy Queen. I wanted to kill myself. I didn't want the icecream but if I refused then I would hear it from my mom and really I am getting sick of listening to her bitch and moan and call me names just because I dont want to be a fat ass like her. So I ate the icecream. But to counter balance that I went to the gym and took a zone class. It was actually pretty cool and I am totally feeling it today. But then of course I had to mess it up again because when I came home my dad had bought cupcakes from the cupcake truck down in the city and of course my fat ass felt the need to eat one. I didnt even attempt to chew and spit just sat there and ate it. I am still so pissed at myself. I don't understand why I cannot just say no.Ugg and today isn't going to be much better because I have to go down and see my grandparents. Why? Why? Why? I am totally fasting on Saturday. I don't care what kind of lies i have to tell people but no food is entering my body. No way I only have a month and 4 days to drop these pounds...... I will not go back to see my friends looking like this I can't.