It takes more than believing to achieve the types of goals I go for. For example, although I know that I have access to all of the tools and resources available to successfully promote music, certain other steps are required sell the music I promote. Getting music on iTunes, setting up performances, logging studio and rehearsal times all require other levels of dedication. It's not enough to just believe in yourself to become rich or successful.
We must ask to receive! Ever heard someone say, "Man they're really asking for it...?" Most of the time its in reference to some persons irritating actions, diving another to the brink of confrontation. Actions speak louder than words; which is where most people fail IMO. Words speak one thing, yet actions state a person's true intentions, most of the time; unfortunately I've known some really good liars. Oh yeah, it also helps to have a good strategy for achieving success in any line of work. Actions determine outcomes and plans determine our actions.
I understand why people give the whole don't give up speech from time to time. Personally though, I want certain people to give up; especially, the ones who prevent really good music from making it to my ears due to laziness, procrastination or fear.