Most regret comes from choices you made too fast and the ones you never made at all.

Two failure modes produce nearly all of it. One is speed, where you commit before you understand and then live inside the result. The other is drift, where you never decide and the situation resolves itself around you, which feels safer while it happens and lands heavier later. Both come from avoiding the uncomfortable middle where you actually think.

For anything sizeable, force a small delay and a real deadline. Sleep on it, and set the date by which you will have chosen. That combination handles both failure modes at once.