Hi, Katie.
Time for my better reply.
Well, I agree with Faith that you have to be VERY careful not to let your eating disorder get completely out of control once you begin at this modeling school. Modeling of course, focuses so much on your appearance and can really do harm to a person with already low self-esteme.
However, I don't think you should let your ED beat you over this one - if modeling has been your dream since you were very young, GO for it! Do NOT let your ED take this dream away from you. You've obviously worked very hard in your life as this has been a dream since you were very young, so now you have to CONTINUE to work hard but this time focus all the determination on your ED - and beat it once and for all!
Actually, it sounds like a really great school - with building your confidence level and teaching you about healthy eating.

As they offer all of this there, I'm sure they also have a counselor there that you could talk to when times get rough? Hehe... now I'm being annoying to ya, I know! But all the same, you DO need to get help one of these days, Katie. Remember, the longer you wait, the harder it gets.

Please don't put it off any longer.
Take care!
Ashlee