Justine Musk, author and wife of tech mogul Elon Musk, wrote about this very topic on Quora. “Shift your focus away from what you want (a billion dollars) and get deeply, intensely curious about what the world wants and needs. Ask yourself what you have the potential to offer that is so unique and compelling and helpful that no computer could replace you … Then develop that potential.”
On the attention front, there are few tools: Significant cash for Facebook ads is one option, growth hacks like invite-all-my-friends-with-one-accidental-tap anti-patterns are another. More aboveboard, you can ride on the shoulders of a giant like Periscope smartly did with Twitter.