I have no advice but want to send some empathy. I also typically get through work with curiosity and my own motivation, and less by discipline.

It's a constant battle to refocus on critical business objectives and not to get distracted by the hundred other interesting rabbit holes.

I know I've given too much time and too much of myself to work, but still feel a bit of shame and stress about falling behind.

I've always heard the advice to do work by discipline and not motivation but 30 years and I haven't figured it out yet :)