I feel your pain, I have to travel for work usually on the road for 10 weeks a year, fortunately though I work the rest of the time from home. So in the summer time we get up early and work until its gets too hot (hot and humid here in KY) then its inside to work at the job, then when it cools off in the evening its back out side.
When I am gone though something always happens, there is a crisis of some sort! My wife has a pretty good head on he shoulder and figure most things out and if she need help we have great neighbors.
My advice, keep trying, work smarter not harder and never give up!