Make an MVP and try your best to sell it, if you cant sell the MVP its probably not worth it to continue to work on the product.
It's important to validate your ideas before going head first into something that nobody really needs/wants
Focus on creating value. You use this value to market and sell.
Jobs/pains/gains is my favourite way of thinking about this, but everyone has their pet frameworks.
Make an MVP and try your best to sell it, if you cant sell the MVP its probably not worth it to continue to work on the product.
It's important to validate your ideas before going head first into something that nobody really needs/wants