I would have replied to you on your welcome thread, but rules say you can't after already welcoming so this seems like the best place to respond to you!
Anyways as for your questions... yeah, I'm a junior in high school right now. I never thought of Lady GaGa like that! I definitely agree with you on your Elton John comparison. I'm surprised I never put those two together since I really like his music too.
I do have one, but unfortunately I haven't even touched it in months. No one from my school is into twitter so I never do anything with it. :( If you want you could just vm me, but I also have an msn and an aim if you'd like to do that instead. :D