nonsense - never just delete the project and start fresh. You spend 20min trying to diagnose the problem by searching for the error messages and looking at the manual, then 1h-2h trying different solutions that only make the problem worse up to the point you actually think you lost your changes, then you realize your changes were stashed all along, then you apply them and notice you still have the same original problem. You try a few more commands that get you to a detached head. Then you try to solve a detached head, realizing after 30 min it's an impossible task, and only then you delete everything and start fresh.