Learn about positioning - horizontal and vertical markets. A good resource is https://philipmorganconsulting.com/the-positioning-manual-fo....
He also has a bunch of free video interviews that you can watch https://philipmorganconsulting.com/dev-shop-marketing-briefi.... I was one of the guests, talking about long tail search engine marketing.
And finally, remember that success in this space is a marathon and not a sprint. You do not have to start out as the fastest, you just have to run longer than everyone else who drops out. In a few years the fact that you are still in the market will be seen as social proof of your trustworthiness and success.