Just had my second last year. I'm realizing its a lot harder to have a baby at 37 than it was at 29. My wife and I basically just stumble into bed each night now and its not from drinking. It will get a bit easier, but the baby is going through the extra clingy state right now, so difficult.
I'm with you. I have one that is about to turn 22 and one that turned 2 in January. I'm 39 and my wife is 40...my little girl is my world and we are in a lot better place financially with her than we were with the oldest one....but I'm tired.