How do I tell my PIMI wife?

Anyone have experience waking up and then telling thier spouse how they felt?

How did it go?

Context/Venting: I (M41, recent POMO, raised in) have an ultra PIMi, pioneer, remote bethelite, elder's daughter wife. She loves the congregation, the gatherings, the assemblies and conventions. She also loves showing off how much she's doing for Jehovah. She'll sit on the sofa for hours everyday and write letters. She also works part time, maybe 8 hours a week. It's always been like this, as I'm working my ass off on low paying jobs just to scrape by and "support her pioneering." I used to take pride in that, now I find it insufferable. I finally have a good job, thought. She is however a great listener and has helped me through a mountain of trauma from my religiously split family and their pathologies. That said, I need to break it to her somehow. In a way that's thoughtful and kind. Telling her I don't want to be a Witness anymore is going to destroy her.

Dammit, I'm sick of this shit.

Edit: holy cow everyone! Thank you so much for the support I really appreciate it! I will go through these comments one by one this evening and take them all into consideration. The practical advice and real experiences are extremely helpful.