ok hun....lets get you there!
first of all...if you have a membership to the y, and need an adult, why not talk to your parents, or an uncle, cousin, etc? They may not have a membership, but maybe if you talk to them, the way you just spoke to us, they would be happy to join with you to help you reach your goals.
If not, walk? go for a walk. every day.
I know, i know, i know, it is SO hard to give up sweets and not to over eat. But honestly, that is the key. Slowly but surely, you are going to have to train yourself a bit in order to succeed in weight loss. Sadly, there is no other answer to that. I wish there was, I'd be right there with you eating cake! lol!
Lastly, you are so young! Thats not to say you shouldnt care, or try. Definately work on it before it gets too out of control. BUT...please do it safely. Dont ever take any kind of diet pill or anything like that. At your age, you can do this naturally.
We are all here for you!! Check in with us anytime!
Hugs from a mom!