You need to do what you feel is best. If you have been just going through the motions, but no longer buy into the Watch Tower way of life, you might as well pull the pin and begin living. If you just cannot live without the family and friend who are Witnesses you need to prepare yourself and go along with the program.
If you have said or done something (usually it is said something) that would cause a body of elders to go forward with a judicial committee please listen to the prior posters. A judicial committee's purpose is not to judge whether or not you committed a sin. They have already convicted you of that. The purpose is to determine, based on their opinion, whether or not you are "worth keeping" (actual words used at my JC). They will judge you to see if your are "repentant".
The first big mark against you is what the allegation is - apostasy.
The second biggest is the fact that you didn't voluntarily come forward and figuratively fall on your sword. Someone else went and tattled on you to the elders.
The elders will most likely not reveal who your accusers are and, even if they did, you will not be allowed to face your accusers and cross-examine them at your judicial committee. Elders have to protect their snitch system in order to keep it going. There would be very few judicial committees if accusers had to face the people they have alleged wrongdoing to the elders.
If you do not want to be disfellowshipped you must:
1) Admit everything
2) Deny nothing
3) Bring a laundry list of things you have done to show repentance
You are on this website for a reason. If any Witness is here, actively participating or just lurking, the best advice I have is stop cold. You're on this site because you no longer buy into the Watch Tower Society's doctrine. When it comes to Jehovah's Witnesses, you are either all the way in or all the way out. Anything else will bring you misery.