Welcome to the board, Cognac-----we're glad to have you.
Now, to get down to business:
I haven't read all of this massive thread, but I've read enough to get the gist of it. As a former pioneer, I can tell you that you're in a fix: You don't have the heart to go on, but you can't quit, either. The old Chinese proverb about having a tiger by the tail is appropriate here: no matter how bad you want to, you can't let go.......
I would stop right now but I just started and got kind of in an argument with the elders to let me (they made me wait because they didn't think I'd be able to do it) and it would be like me telling them they were right but they weren't. I don't want to for other reasons. My husband kind of told him off and got him into a bit of trouble over the whole thing so for me to step down now would be like me saying he was right and my husband was wrong. There is no way I'm doing that with the way my husband got involved with the whole thing.
You're screwed. I've been there and I know how trapped you're feeling. "Trapped" is an understatement. I also know that if you don't do something soon you're possibly going to have a nervous breakdown, maybe even becoming suicidal. Believe me, it happens.
And so, this is, I believe, your most immediate problem: Pioneering, especially if it's only half-hearted, will sap the the life right out of you. This is the fix you're in, and you must take care of it.
I don't know if this has been suggested, but you need a plan, and this might work: Hang on till August if you must. But pad your hours!! The whole thing is a big hoax anyway, and what you would be attempting to do would be for the purpose of survival and self-preservation. So, (let's go ahead and call it what it is) lie about your hours. It's all a big lie anyway, and lying on your time slip is preferable to lying to the householders in field service, in my opinion. For every one hour spent, add a couple. Same with return visits and placements. This will get it down to something that you can manage, and you'll be able to keep up appearances and maintain your sanity along the way. If the target date is August, then go ahead and report your quotas for the first couple of months. Then start tapering off and report less and less. If the congregation continues to approach you for all the favors and chores that need doing (and I'm sure it will), you can can honestly tell the supplicants that you are simply too busy and that someone else can "enjoy" the "privilege." By August, you can go to the elders and humbly admit that they were right and you need to be deleted from the rolls and they'll understand. Then you can start to fade; that's how I left the organization, and, for most people, it's probably the best way. The alternative is not good at all, especially if you want to maintain family relationships. Also, (and this is very important) keep your mouth shut and do not confide in anyone-----------------you'll be in front of a committee so fast that you won't know what hit you.
Maybe this would work for you, or maybe you can adapt the ideas here into something you can use, but you do need to get a plan in place and start moving toward a goal. Then again, everybody's always got good advice------------------everybody's fraught with good advice; but as often as not, it's you---the one who's actually in the trenches struggling for a solution---it's you who has to work it out in your own way, on your own terms.
I wish you well, Cognac-------------------my heart goes out to you.
David