Why?

Coming up with a reason to why you're doing this is very important. It gives you motivation. It inspires you. It makes you keep going after that goal. So make a list of your own as to why you're doing this. Look at it regularly. Memorize it. Refer to it in times of weakness. Just make one. Below are my reasons. There's a lot more than that, but that's just the gist of it.

There are so many reasons.

To prove to people that I can.
To make other girls as jealous of me as I am of them.
To make guys want me. Or at least think I'm pretty.
So I think I'm beautiful.
So no one's embarrassed to be around me because of my weight.
So I can look as good as the people in these pictures.
So I have better clothing options
So I can wear shorts
So I can look in the mirror without disgust
To fit into my clothes better
To be the girl that he deserves