My husband was the JW, not me, so I will try to recount his timeline: Started having serious doubts in (roughly) 1996. Continued going regularly through 1998, was by then sure he needed to get out. Stopped "skipping" in 1998-1999, but kept going and was still active. Stopped attending regularly in 2002. Last set foot in a hall over a year ago.
He basically did that by finding things to keep him busy -- college, a full time job, an internship, etc. He was literally too busy to go. He was still friendly with everyone from the Hall and occasionally did social things with some people (although many shunned him for dating me, a worldly girl). He was entirely inactive by the early part of last year, but is not DF'ed or DA'ed. Fading really is the ideal situation, if you can pull it off. Worked for my hubby... I hope it works for you. Be strong!
SLM