You're green, I'm red!
No worries about being a teen on here, girlie, there's tons of us! I'm going to be sixteen next week, and I know that there's a lot more of us, there was a whole post dedicated to teens!
Anyway I can't relate as far as moving goes or the itchies or anything like that but I can relate to possibly being scared of change and school (although mine doesn't sound as fancy as yours lol).
Okay so mini-story:
In the 7th grade I just took a massive nose-dive down in about every aspect of my life. I was only getting 3 maybe even 4 hours of sleep a night if I was lucky, and I was gaining. A lot. I think I gained almost ninety pounds in 06-07.
I was very unhappy but I felt "comfortable" at that weight, I felt like if I lost weight then I wouldn't be me at all. And I felt this way for another three years.
Change you shouldn't be scared of, it can be good!
I can't relate to your mom thing but you probably have to get a little brutally honest with her. I mean within the bounds of respect I tell her to pretty much please don't get involved with what I have to do for myself, you know? Like if you're comfortable with that, but I think that you really need to sit down and talk with her about all of this and try to work something out with her so that she'll at least stop telling you how to do your thing. We wouldn't tell Meryl Streep how to do her job, would we? Well I wouldn't, and I'm guessing that's how it kind of feels with your mom?
As far as clothes go, oh man I feel you there. So much. I have lots of skinny, skinny friends that like to go into A&F and American Eagle and all of those stores but I can't shop there. I feel really out of place in there sometimes (occasionally I'll take a spin to the perfume section an I don't feel so bad anymore).
I use to eat for no reason, too. At the movies, got the big popcorn and near the end of the movie I realized I ate half of it. Watching a movie I could go through a whole box of cookies, in the span of an hour I could drink eight gatorades, it goes on! This was a hard for me to break but I haven't eaten out of boredom in a while. Why just a couple of weeks ago I went to the movies. Twice. In one day (yeah who the heck does that? lol well I went once with family, once with friends) and both times I just got a small diet soda (something sweet, you know) and watched the movie. That was a pretty big victory for me, before then even while being on plan I had had at least some popcorn.
You just need to find another peace, something that makes you just as happy as your job or food does. Knitting is fun, so is writing, making some cool pictures, lots of things!
As far as a plan goes, I'm counting calories and I see that it might not work for you and that is A-OK! But my mom and I didn't/don't have the money for like Nutrisystem or Jenny Craig or WW or any of that stuff. You can make this work on what you have, trust me! You just find to keep searching for a plan that you can stick to, love, and create the rest of your life on without any doubt. You can do this, you can!