Moving too soon usually costs more than moving a little late.

The two errors are not symmetrical. Acting early can forfeit the whole thing, since options close and information you had not received turns out to matter. Acting slightly late usually costs some efficiency and leaves the situation intact. Anxiety treats them as equally dangerous, which is why it pushes you towards the more expensive one.

Before your next decision, ask what each mistake would actually cost and write both down. If early is much worse than late, build in a delay on purpose and tell yourself in advance what you are waiting for.