A lot of people sell themselves short. Some people think they're not interesting enough to be worth knowing. Some people think that because they don't fit a certain body image, they can't have good looking friends.
They're wrong.
However - this isn't an easy hurdle to overcome. For a lot of people, it's easier to get the confidence they need by changing themself, instead of just accepting their own self worth.
For those interested in changing their body, I recommend P90X. If you can't cut it, start with the P90 series. Or just start going to to the gym. Hell, even just eating right makes a huge difference.
So, in short, if you're worried about your body, here's a list of things you can do to fix it.
1) Cut the soda out of your diet. That shit, in addition to making you fat, basically kills you. Diabeetus and all that.
2) Don't eat until you're full. Eat until you're not hungry. You'll eat more, which'll keep the metabolism going, and you'll stop overeating.
3) Work out.
I recommend P90X if you want to work out. It covers all your bases, and pretty much gets you going. Easy to do in your own home for minimal cost too.
You can find out more at my colleague's blog here: P90X - BRING IT!
