Laura, you need to talk to someone. Talk to your school counselor and see if he or she can help you through this time of turmoil. Being a teenager is stressful enough; being in a JW household at the same time is even more stressful.
E-mail me if you need to. Don't be scared of the JW's. Their power is over those who give them power. If they "discipline" you, just be polite and tell them you apologize if you did anything that might have given someone the wrong impression. You can hang on one day at a time until you are old enough to be on your own.
In the meantime, get the perspective of a mature professional. Remember that the reason for behaving in certain ways is not to please the guys at the Kingdom Hall but to be true to yourself and avoid harm to yourself and others. Talk to someone before situations arise that might put you in an awkward position.