Whether you think you can or think you can’t, you are right!
Henry Ford was definitely onto something here. Self doubt is easily one of the most common self fulfilling prophecies. If you stopped and thought about every decision you have personally made today, I’m quite sure that you would be able to pick out at least one that you made negatively because you thought you can’t do it. We all do it, and we will all keep doing it as long as we’re driven by human nature.