your voice has to be treated like every other instrument. with respect, and care. i´m sure that if every vocalist would practice as much and as hard as all the other instrumentalists, there would be HEAPS of real great voices out there. Almost everyone can develop a good voice. its alot about the right breathing technique, articulation, etc. having at least a bit of professional advice for the start woud be good, for the voice is a very fragile instument. if you train it wrong or learn it wrong, you might not have your voice long enuff to get famous with it.