How do I trust my judgment on unpredictable police calls?

You handle most calls now with real skill. The ones that still get to you are the unpredictable ones, where afterward you replay your read and wonder if you got it right. That second-guessing is not a weakness. It is the mark of someone who takes the weight of the job seriously. But there is a difference between learning from a call and endlessly re-litigating it. The unpredictable calls, by their nature, could not be fully known in the moment. You made the best read you could with what you had. Judging your split-second choice by information you only have now is a trap that erodes your confidence unfairly. After a hard call, ask one honest question: given what I actually knew then, was my read reasonable? If yes, let it rest. If there is a real lesson, take it and move on. Review once, learn, and close the file. Your judgment sharpens through this, but only if you stop grinding the same call to dust.