TM, I really feel sorry for you.
Two years ago I DA'ed myself and looking back there are several things I realize.
1), Pick your battles wisely, and don't let your witness-dictated and contitioned feelings dictate what you should do. At this stage they may win the battle, but you will win the war. Have you ever played store, or some other situation with kids? They might tell you what to buy, and how much to spend. Remember the witnesses are no different, They want to tell you what you need,,,,, they are just children in an adult body.
2), If I had to do it over, I would have written a small, friendly letter to 6-7 people at the hall explaining what I was going to do, and that I appreciate their friendship over the years. A week or two later I would have mailed my DA letter to NY and our PO. I felt that i needed to do this.
It allowed me to close that chapter of my life officially.
3), My letter was short, sweet, and to the point.:
EX: This letter is to explain that I no longer wish to be known as, or associated with the organization known as jehovahs witnesses. I have outgrown it, and I personally need to move on. I appreciate the help shown to my family in the past, but recent events have opened my eyes to the very "conditional" friendship and tightly controlled lifestyle that is allowed witnesses. I do not want any shepherding calls, Signed XXXXXX
Take control of the situation, don't let them call the shots. I found that it really confuses them.
4), IGNORE THEM WHEN THEY CALL, We had several elders stop by trying to get us to change our minds. My wife (also DA'ed herself) would talk to them when they stopped by. They just couldn't understand why we would do this. Remember stay in control, dont let them get to you.