Crumples,
If only I'd known 30-odd years ago, as a teenager, that I wasn't alone in feeling the same way as you did, then there's a lot about my life that might have been so different.
I'll second what you say to the teenagers locked in to the JW's now; there's a huge network of support available to you these days, and there's no need to accept the isolation and hopelessness that you may be feeling. Sure, it won't be easy to break away from something you've known since birth, and you'll be under a lot of pressure to conform, but there is a life outside of the JW's that is open to you if you have the courage to make that first step. It's up to you though.
tim