My W goes to bed about 9-9:30 every night. I'm more of a midnight person. So I get 2-3 hrs of alone time every night
Most nights, I usually run out of time.
Why don't you take up baking? That can fill your day and your tummy.
I still think no matter what happens, you will always need "you" time. If nothing more than to recharge your batteries and if your W is like mine - she will understand.
It sounds like you are going through a little of what I went through. Just be patient until the MC...then hold on.
Patience is bitter, but its fruit is sweet. --Jean Jacques Rousseau.