Ok,
Just because you're 16 doesn't mean you have to give up your self respect. I assume you love your parents and they love you. This difference of opinion on the JW thing is the main conflict? They probably see you as too immature to see clearly the results of your rejecting the faith. Oddly enough, they probably feel you are old enough to choose the way of the truth and get baptized. Confusing, eh?
Is there someone you want to date, is that behind your reasonableness? Not trying to trivialize it at all, its actually quite common that one questions the witness doctrine when it forbids normal activities.
You have little choice but to do as they say in a physical way, attend meetings etc. Might as well roll with it. You don't have to agree with it, or for that matter live it to the letter. Girlfriend or boyfriend on the side, smoking? (Ugh) whatever you do, you will do it anyway. The main thing is that you not give up your right to BELIEVE what you want no matter what they cram down your throat. You can do this. Its only two years. Stick with the board here and you'll get plenty of listening ears.
All the best,
W.Once