Go ahead and give it a shot. Nothing is more empowering than successfully doing something you thought you could not do.
When you surpass one assumption, you'll begin to question other limiting assumptions. When you step out of your comfort zone and taste success, you're suddenly confronted with a whole new level of exciting possibilities.
What have you always told yourself that you're not capable of doing? Imagine what would happen if you went ahead and successfully did it.
Your whole concept of what is possible will radically change. Your confidence will skyrocket to amazing levels.
Take the first step, because you know you can go at least that far. You'll quickly discover that the next step is within your reach, and then the next one, and the one after that.
See it through, and succeed at doing what you previously thought you could not do. Feel the full power of your own intention.