The job you hate is building the stamina you’ll need for the job you want. Clock in like it’s training camp.

Work you dislike is still building something. Shifts you resent teach you to arrive on time when you do not feel like it, to stay pleasant with difficult people, to keep moving through a long afternoon. None of that is glamorous, and all of it is what the better job will quietly assume you already have. Time there is not wasted just because it is not wanted.

Choose one thing to get genuinely good at while you are in it, even something small. Speed, accuracy, staying level at the worst hour. You are the one who keeps the skill, and it travels with you when you leave.