If you can't deal with criticism and failure, the business of music will make short work of you--

That said, you should know that everyone that creates and performs feels these same things that you are talking about--there is a constant battle with the fear of failure, and the dread of critcism--the determination to overcome those things is your real "potential", whether anyone likes to admit it or not, talent is a distant second--

Bob Dylan was not the greatest singer, Billy Joel was not the greatest songwriter, and Madonna, well, she was not the greatest anything, but they all were determined above all else to be successful--

People like Benny Goodman, Michael Jackson, and Richard and Karen Carpenter were perfectionists--they made every sacrifice to assure that their vision was carried out--

Liberace, Garth Brooks, Kiss, all made pleasing their audiences the most important thing in their lives--

Don't know if you are willing to make the kinds of efforts that these people made--most of us here have chosen not to make the kind of committments that these people have, because the demands preclude other things that are important to us (some of us don't realize that we have made the choices, but...) You get the picture, though--