Like almost all startup founders I spend way too much time obsessing about my ideas. Guess what? Nobody cares about my idea, and they don’t care about your idea, either. Nobody.
People are selfishly motivated first and foremost — they want to know how you are going to help them, not what you think would be cool to build. Focus all your energy on solving a critical problem. Forget your idea.
(1) Perhaps this is too extreme. Instead, consider: “The best product managers are those who can define and articulate clear and consistent product vision while constantly evaluating it. This duality is one of the hardest things in getting product management right.” — from Feedback versus vision in product management. See also Balancing product vision and listening to customers.
(2) Having said that, it’s important to recognize the balance of risk: there’s a greater risk that you’ll neglect what users want in favor of your own ideas than that you’ll neglect your own ideas in favor of what users want.
(3) “Focus all your energy on solving a critical problem” — see Build your product to explicitly address a “Job To Be Done” and How to identify your customers’ “Job To Be Done”.