But we are all limited to where we can live by our own pockets, aren't we, regardless of taxes? I can't afford to live where I grew up as a child, much as I'd love to, but I'm not whining about it, I live where I can afford, much as the majority of us do.
If OP has so little left over at the end of the month before any perceived tax increase, she's taken on too big a mortgage for her budget. Simple as that. It wouldn't matter if it was taxes or an emergency situation tipping her over, it's happening because she's living somewhere she can barely afford.
And, yes, even in the South East, that is something she can change. It won't be easy, it won't be where or what she wants, but if you asked most of us, we aren't living in our dream locations, we are living where we can afford to, even if that means a long commute, etc.
That's life. Yes, it's much harder now, house wise, but frankly it's always been the same. Where you live is determined by what you can afford, how much debt you can managed, what your work situation is. And that includes the Council Tax bill, which incidentally is actually used to fund public facilities we all use, not just paying for benefits.