I wasn't interested in the emotional story behind this. But I did resonate with 1 line in particular here: "It doesn’t matter how amazing your product is, or how fast you ship features. The market you’re in will determine most of your growth." This is so true, in my experience. You hit a roadblock in recurring revenue, not because your product doesn't have enough features, or your team sucks, but simply: your market…
What it comes down to is being content that you will not always make a billion dollar product. With that in mind, a big market has many definitions. Maybe you should have paid attention to the emotional aspect.