How I deal with it: Make a list of things to be done, and a schedule. Do the things. Schedule in time off, relaxation, distraction, any of it. And allow enough

How I deal with it: Make a list of things to be done, and a schedule. Do the things. Schedule in time off, relaxation, distraction, any of it. And allow enough "give" to take moments if the head-against-wall moments get too much at a moment. But always keep to the schedule. Although a hint : if you need to work overtime to fit the plan, the plan is bad and needs to be fixed. (although "need more people" is an acceptable excuse, and can be very enjoyable if you CAN get more people and if it works, it's an acceptable answer to fixing plan too) I've worked several jobs through like this (all successful - moving on is good though too if you're doing the same frustrating thing too long). And I don't regret the work I did because in the long run the annoying parts were resolved.