Kat, listen to the advice of Ron, he knows what he's talking about. I very much liked the theme of your poem, probably because I have (and still do) have some of those same feelings, though I am much older. I read all the writings posted here, and know what I like, and have definate opinions about whether I believe the writer has talent, promise, or whatever you wish to call it. I would echo Ron in that you should keep it up, work and learn. If you were to go back and read some of his work here you might understand and be able to apply his advice. I agree with his thoughts on these particular lines:
I've lied about how I felt
I've been going with this lie for so long
I never had to deal but I've dealt
Those lines touched me, because I've lived that, and for one so young to feel that, and be able express it, impresses me.
Short answer, it's good, needs polish, but you have a definate feel for what you want to say, and how you want to say it.
Is that the type answer you wanted? For one so young, I believe you show real promise.
And...Welcome!! I love the youngers here, and enjoy what they have to say!!