Welcome to the board torn in two son.
I am in a similar situation to you in that I am awake to the Watch Tower. I am not a teenager but am in my twenties and still living at home as I have just recently finished university. I planned a slow fade but in the end it just turned into a lightning fade because I could not stand the meetings anymore.
None of my family are awake, although some are aware of my complete disbelief in Watch Tower doctrine. Things are difficult when around such people and, as you can imagine, the cult-speak is often intolerable. Having said that, the fact that your immediate family is also awake is good news as you can speak freely and openly to them; when I try that I am just told to shut up or am shouted at. I am currently seeing a counsellor and I can't even speak to my family about what I tell her as, when I try, they get angry at my speaking badly about "the truth." I cannot tell you how wonderful it would be for me to be able to speak to my family openly. I must emphasise again that you are fortunate in this respect.
The fact is, whatever happens, you will not lose your immediate family no matter what now. It is unfortunate, but in order to be true to yourself the time may come when your other friends will shun you.
As far as beliefs were concerned, I was relieved when I found out it was all wrong. It was as if a large weight had been lifted from my shoulders. I am still a Christian and my lifestyle has changed little (contrary to what the Witnesses always predict). As for your own beliefs, whatever path you take, I think and hope that you eventually settle down into something which feel comfortable to you.
All the best.