Hi and welcome!
Your reasons are your own bro, and for my part, I'm acting as sort of a mole myself. Not that I can have much influence as a sister, and the reason I'm moling is 1. because my husband is in, and 2. I like the weekly chin-wag.
But as you fade, if that's what you decide to do, people in your cong will start to overlook you and you won't get invited by others out on field service and that. Social gatherings too maybe. I find the people in my hall are so used to me in my seat I'm like part of the furniture really.
One thing I can recommend: develop a chronic condition. You're not a true JW unless you have a chronic condition or food intolerances! Gives you a good 'out'. Not that I'd recommend chronic fatigue syndrome normally: I can't hold down work at the moment because of it.
Love and peace
Julia Orwell (named after George!)