Hi longgone,
Firstly, I feel for you - you are so brave to make this stance.
I am in a similar position I do not want to be disfellowshipped either. I have been quiet on the forum lately for that reason as I am in the middle of a fade and had a hard time of it.
Can I say something because my fade has taken a long time and I am still not through. I sense you carry a lot of guilt over your father and family's happiness. Maybe try and process that a little, when I realised that I am not responsible for their happiness, it did not change my situation BUT it changes the heaviness of burden. It gives you a freedom from that "fear" that has been programmed into you. The best thing you can do is live your life and make a success of it. When they see how happy you are, they will start to question their own happiness.
In relation to being disfellowshipped, they cannot D you for falling away or not attending - that is not a sin. I had the villagers with pitchforks come after me - one was an overzealous family member who is an elder, but they had no evidence of wrongdoing. Don't give them evidence, watch what you say to your family and even though they will know something is wrong. Eventually they get tired and just resort to the stupid comments of how the end is close in an effort to "encourage" you.
I have tried to spend time finding myself in all of this. I recommend the book "Exiting the JW Cult" - the author is an ex-jw turned phsycologist.
It is a hard road, we are all here for you.