How do I stop getting stuck on weird edge cases at work?

You solve most problems quickly now, which is why the strange ones stand out so much. Falling down a rabbit hole on a rare case is not a failure of skill. It is the price of caring enough to actually fix the thing rather than paper over it. The trick with edge cases is not to never get lost, but to notice sooner when you are. Give yourself a limit before you dig in. A set time, then a pause to step back or ask someone. Fresh eyes often see in a minute what an hour of tunneling hides. Next time you feel the pull of a weird case, set a timer for thirty minutes. When it rings, stop and reassess. That small boundary keeps the deep dives from swallowing your day.