I know the feeling. We moved my daughter and grandson who is now 13 months old back up to Alaska and they live with us. She is working and grandson goes to daycare, but once I get off I have him until she gets off and then trying to get stuff done in the house doesn't leave much time for quilting.
But it has come to the point for me that I need to sit down and take time for myself and just do it. Sometimes the taking care of me becomes important. Take that hour or so after they go to bed to make time for yourself. Its worth it.