Indeed. And this was with a comparatively tough start. If Sis had started out with coastal access to other civs the game might well have been over by this point. As it is I'd say that, barring any dramatic and unforseen complications, the educational part of this game has passed. So my only advice to Sis is to wrap the game up asap, start preparing for the next challenge, and remember to go up a level next time you play a watery map with a watery leader.