What I'm working on is absolutely a factor in my interest, and how much energy I'm able to give- equally, how much the work pulls me in.
But I've noticed I increasingly work in ebbs and flows, probably as I become more aware of my energy levels and how I want to commit my time. It doesn't help that my calendar has become terrible for engineering work over the last year, and I actively schedule weeks of "get properly involved in the building" alongside all the other responsibilities my role entails.
Personally, I find the flexibility to distance yourself like this is really important. It helps me recover my energy and make sure I'm properly there when it matters.
> new child related
On this note, I think you might have found your smoking gun. This is hard enough by itself, but alongside all those others changes- I hope you're holding up!