How do I deal with the fear of missing something at work?

Your job is to catch what everyone else misses, so your mind stays braced for the one thing you might overlook. That fear is the shadow side of caring about the work. It means you take the responsibility seriously. But left unchecked, it can run you ragged. Here is the truth the fear hides: no one catches everything, and you are not supposed to be perfect. You are supposed to be diligent. A good system does not rest on one person being flawless. It rests on layers, checks, and honest effort. Your part is to do your part well, not to be the last line against every possible mistake. Build a process you trust, a checklist, a review, a second set of eyes, so that catching things does not depend on your anxiety staying high. When you have followed the process, let that be enough for the day. You can be careful without being afraid. The process carries the weight, not your nerves.