I have been guilty of doing this a lot. I have actually quit new endeavors before they had a chance to take hold. I have made excuses not to try something new, because I might look like an idiot. We need to stop worrying about the bad things that could happen and be present in the moment. We can actually sabotage our futures by worrying about the next step so much that we forget to do something vital now. It is like when a football player starts to run before they catch the ball. Ensure you are fully in this moment before you think about the next.