How can i lose weight?

My best advice is, be happy with yourself and don't stress so much. Find a pretty dress, and I'm sure you'll feel just fine when you get there. People will be looking at the gorgeous bride and less attention will be focused on you. If you really do want to lose some weight, just cut out all the junk food and soda and try to snack only on vegetables and fruits... but don't go on any crash diets (like fasting or drinking only fruit juice or anything like that). Talk to your mom and discuss it with her and tell her why you want to lose weight. She's probably right about the gym, you're probably too young to us the machines correctly...