Working for other people is like being part of a rowing team inside a ship.
You know you are contributing to the ships motion but you can’t control the ship, you can only control your oar.
Working for yourself is like standing on the bow of the ship looking out at the ocean. You can make the ship go whereever you want but sometimes you scan the horizon and see nothing at all. No land, no other boats. Nothing to tell you which direction to take.
You wonder “am I going in the wrong direction, or am I going in the right direction I just haven’t gone far enough yet”.