Today's business card size inspiring signs are about "going for it." All of us at some point or another have really wanted something but were too afraid to go after it because mainly we feel unworthy or not good enough.
But really, you can't know if you can't have something if you never ask for it or go for it. You can make many assumptions, but assumptions are not proof. It's like Law & Order. Jack McCoy can't prosecute a perp unless he has proof he/she committed the crime. It's the same thing with you, you can't predict failure OR success without proof and that is proof is action. Vice versa, how many people you know including yourself went for something you thought was a sure thing and it turned out to be an utter disaster.You didn't expect anything to go awry but it did, and you discovered this because you went for it.
The point is that success or failure is only determined after an action takes place. And even if your action produces an initial failure, it gives you food for improvement. So, go for it! You really have nothing to lose. Print out these tiny signs and tape them anywhere you need a little boost of confidence.