I am extremely indecisive too and having some major issues here at work. I am ready to just walk away from my job because it makes me so miserable and the stress levels are unbearable! I am also a huge analizer! I really hope that sooner rather than later you will begin to feel some relief after your decision! I think you made the right one! Obviously this promotion was not the right fit for you, but if you keep working hard and impressing your current manager, a promotion, that is a good fit for you may come along!