I've recently come to the realization that playing well in doubles includes getting/helping your partner play well.
So I have been working a lot on what I can do to make my partner play better. Either shoring them up when they start to wobble, or snapping them out of it when they go into a slide.
Saying "I would've held serve if my partner didn't miss those two overheads." somehow isn't very reassuring to me.
You either die a hero or live long enough to see yourself become the villain.