The great inventor Thomas Edison once said that "Genius is one percent inspiration, ninety-nine percent perspiration." What this means is that if you have a great idea - even a brilliant one- it doesn't mean jack and will do nothing for you if you don't put some effort into it. And by "effort," I mean work your ass off.
Too many times, people think that success should be easy - that the rivers of prosperity should simply flow in their direction without them having to lift a finger. Sorry Charlie - that's just not how it works. If you want something (and assuming it's something worth having), you're going to have to roll up your sleeves and get your hands dirty.
A prime example of someone wanting something and working like the dickens for it is Chris Pratt, star of Guardians of the Galaxy. In order to get the role, he dropped 60 pounds and got into the best shape of his life within 6 months. (In his own words, if you want something like that you have to be willing to "bust your ass" in order to get it.) Still, people seem to think that it should all be handed to them.
Take writing, for instance. On the surface, it probably looks easy: you get an idea for a story, you name some characters, sprinkle in some action - maybe a little romance - and voila! Instant success. Bullshit.
First of all, writing a book - like the creative process involved in composing music, painting a picture, etc. - is incredibly hard. That's why most people who dream of writing a book will never actually start writing one. Most of those of start writing one won't finish. The vast majority of those who finish won't publish. And many of those who publish are shocked - shocked, I tell you! - when their finished masterpiece doesn't become a runaway bestseller.
Basically, if you have a great idea for a book, treat it like it's great: Write it to the best of your ability. Get a decent cover. Write an enticing blurb. Don't just throw it together and stick it out there for the world to see in hopes of making a quick buck. All you will do is tarnish your brand and make people suspicious of the next thing you write. You don't just want to get to the goal line once; you want to score over and over again, but doing that requires - you guessed it - hard work.
In retrospect, don't be afraid of putting your back into it. Hard work isn't a sin - you won't burn in hell because you put your best effort into your writing. Besides your readers deserve your best work, nothing less. And so do you.
