If you really have no VC money, it's great that your revenue is hitting serious numbers to support your work. The hardest-hitting part of your post is right in the beginning though. Lightning sucks. $116 for $18,194 means more than half a percent in fees... That's insanely high for not even being actual on-chain transactions. Might be even higher than it would be with an actual mining rig collecting fees for on-chain doggie coin or Monero tips