How to Start Losing Weight? 10 points for the best answer!?

I''ve been heavy since i started middle school....now that i''m in high school i realize that my weight can cause many problems in the future.... I''m 5''5 and 160 lbs....I know its a lot....
I try to exercise but I need to start with easy exercises. I can do jumping jacks, I can jump rope for about 2 minutes non stop......How should I stay committed and motivated?
I''m a vegetarian....I don''t eat meat/eggs/fish.
Please give me beginners exercise guide and some easy eating tips..
Thanks.

Lose Weight Fast - How NOT to Lose Weight Fast!

Recommended Answer:
Eat salads, start walking that is the best thing. Play in gym during school. Time yourself while your walking like you have to get home in 30 minutes or less (get me) Join a sport you like.
Do some yoga that is on tv.

• Exercise is good for you in a great many ways, but by itself does little for weight control. If you work out very hard you will burn more energy, but you will also be hungrier and want to eat more.
  
  No matter how hard you work, to lose fat you MUST limit your calorie intake to less than what it takes to stay the same weight (yes, that means dieting.)
  If you don’t track your daily calories consumed, you will have no idea what you’re doing.
  
  Here is a good site that helped me lose weight. It has information on calculating needed calories and lots of tips:
  http://infinitelydensetom.blogspot.com/
  .