Who is the excuse aimed at?

Sometimes someone else wants you to do something that you don't want to do so you give them an excuse. You yourself may or may not believe in the excuse but you want the other person to stop trying to control your life.

Sometimes you dream about doing something but the circumstances of your life prohibit you ever realizing that dream. For example, I want to be a billionaire. If I can't find a way to be a billionaire am I just coming up with an excuse?

How about your wants being motivational?

If you really want to do something, you get on a way. If you don't get on a way, you are a couch potato. It is more about the journey than it is about the destination.