You sound like where I was several years ago, walking on eggshells so the W wouldn’t blow up over something. It gets old after a while and when you realize it’s just a form of manipulation, then you lose any hesitancy to hold back, and you start to get pissed (at least I did).
Except for the latter part, I don’t know anyway out of this other than to stand up. Every inch she gives up to you is all loss for her and all gain for you. So of course she will pitch a fit. That’s why I look at it as taming a wild horse. They’ll fight it as hard as they can, but eventually they’ll get used to it, and then they’re fine.