Jeania, that's exactly what I ended up doing too after I got the second update added to the game. It wasn't helping with the exhaustion problem at all until after I deleted all my families and started over. Plus, because I mostly play at night, I switched the day/night as well.

I only have two families going right now, mainly to test things, but I have not had any problems so far with tiredness/exhaustion problems. Although I must admit that I just did this earlier this evening so I'll have to wait and see what happens over the next couple of days, but I do know that just adding the newest update to the game didn't help the tired/exhausted problem at all until I wiped out the old and started new.