Hey there wolfy,
Don't worry too much. Being a JW teenager is a temporary affliction. I have been told by the highest authorities that this passes at some point. One day you will have good friends, cars, an apartment or house and even other things like keys. In the meantime you have reading, which means you have access to the wealth of human knowledge and experience. So use this privilege to your absolute advantage.
You should also remember that some teenagers that have access to all the things that you do not, like having many friends, that can do what they pretty much like and have parents who are not Jehovah's Witnesses, can still feel alienated, isolated and alone. So its not just a JW thing, although being in the religion doesn't help matters much.
Also perfect your art. I'm not talking about substance, because if you express what's in your heart at this point, your parents might make matters worse for you, but I'm talking about technique. Then when you're an adult and you can do whatever art you can imagine or want to imagine, then let it rip. Oh and don't be scared to throw your perfected technique in the trash can. Picasso was a very good classical artist as a young man:
This was all done so that he could discard it later (although it would still remain a valuable experience) and do what the hell he wanted to, so that he could eventually become the iconic magnificent modernist he was meant to be:
Anyway I've spewed enough comment feces. There are other comments that you need to read.
