[PvK]

I think my typical main suggestion for when the time to play gets too long, would be to reduce the frequency of turns. 12 hours is too short for late-game on a big map.

If as you say Zap, you also weren't enjoying it... well you can try to find a replacement, since different players enjoy different things. Meanwhile, consider Gandalf's advice of not doing everything every turn. Put as much as possible on repeated behaviour, do the important and easy stuff only and send in the turn. Another idea is look for things that would be fun for you to do in the game besides micro-managing everything, and do those things.

PvK