How do I cope with the pressure of a job that never stops?

You keep a system running that can never fully stop, and the pressure of that is relentless. There's no natural finish line, no moment the whole thing rests. Living under that kind of constant demand wears on a person, and it's fair to name that plainly. But you are not the system, and you were never meant to hold all of it at once. The whole keeps moving because many hands share it, in shifts, in turns. Your job isn't to never stop; it's to do your part well while you're on, and then to genuinely hand it off and rest. The system is built to outlast any one person's stamina, including yours. When you're off, be off. Guard your rest like it's part of the job, because it is what keeps you fit to do the job. A rested person holds the line better than an exhausted one ever can.