Is there a spare room in your house, a guest room perhaps, that you can take over from time to time? It doesn't have to be big. And guess what? It doesn't even have to be a room. It can be a comfortable chair, a desk, or some corner of a room that you've laid claim to and that everyone else knows to leave alone (and to leave YOU alone when you're in the space, unless they've been invited).
When you need to recharge or relax, having your own room might prove more valuable than you can imagine. Hang a DO NOT DISTURB sign and use your room to: