Knowing yourself is healthy. Rehearsing every conversation twelve times in the shower is just spinning your wheels.

There is a difference between studying yourself and looping. Studying gets you somewhere new, while looping runs the same scene twelve times and calls it preparation when mostly it is worry in a useful-looking coat. The tell is that a rehearsed conversation never reaches a conclusion, only a slightly better line.

When you catch yourself on the third run of a conversation, stop and ask what you are actually deciding. If there is a decision, make it. If there is not, say the thing to the person or set it down, because your head will happily hold the rehearsal forever.