And Uber has lots of money, but their product is still a shit-show, although, granted that their payments platform has excellent uptime and works very smoothly

And Uber has lots of money, but their product is still a shit-show, although, granted that their payments platform has excellent uptime and works very smoothly given the n-to-n model of the system. It sounds like the product your business is developing is scoped too large for the revenue or market share it can realistically capture. Scope according to money available, then your product, and your team, will be happy for it. The business will flourish too, and maybe you'll feel less stress.