Welcome to the Board, alexjen!
I was raised in the "troof" and realized at the age of 17 that I was gay. However, it wasn't until 23 that I accepted who I was. For those long years inbetween my realization and my acceptance, I kept doing what the dubs said would work. Of course, you know it never did and never will.
The Best advice is to not get baptized, stall it as far as possible, even if they threaten you can attack back with that Jah wants true people in his religion and if your not ready it will look like you got baptized because of the person threatening you.
Gaybeat is absolutely correct. Once you get baptized, you have to play more by their rules. You never get baptized, you never give them ANY power over you. Believe me, you are correct, when they find out that you're gay, you will be treated as disfellowshipped whether or not you were ever baptized. However, if you were baptized, your disfellowshipping means getting cut off from all JW family and friends. If you're not baptized, they can't officially kick you out of their cult, club, religion and you will have a chance to have a relationship with your family.
I pray that you have parents as wonderful as the parents my partner and I have. Both of our families totally accept us. (His family is Catholic.) If you ever want to talk, please feel free to send me a private message. I will be happy to answer any questions or just listen to you vent.
CountryGuy