I agree, OP. It's utterly, utterly shit.
I've been handling it by focussing on the things I can do to make things better - writing, complaining, researching, campaigning, donating, etc.
I find that throwing my energy into positive action to counter all the horrible things in whatever small way I can helps me to handle it better from a mental health perspective and to feel less overwhelmed and defeated by it all.
The fact you've even come on here to talk about it is a hugely positive thing you've done - yes, it's overwhelming and feels like it's getting worse (or perhaps being reported more, or we become more aware of the patterns as we gain more life experience, or a combination of factors, who knows), but also, more women are noticing and talking about it now.
I have had many, many experiences in the past (some decades ago, some simply pre #MeToo) where I've been criticised and shouted down (by men and women) for even suggesting that male violence against women is an actual thing and have been told it's unacceptable and sexist to say such a thing a NAMALT, Not My Nigel, etc.
So while the violence appears to be getting worse, I think it's also that the connection between male violence and females being harmed is being highlighted in ways it wasn't socially acceptable to do even five or ten years ago because of the patriarchy's hold on society, politicians and the media. I think having more women in politics is helping to highlight the issues too.
I think the fact that people are openly encouraged to talk about male violence against women and to acknowledge the patterns without being shouted down and called a man-hater is actually a really positive and necessary step, even though it feel shit for women to be confronted with those patterns. We're on the right track.