I don't want to lose this amazing advice Wanda gave me:
Take time for you. Do things you love. Let yourself feel your feelings. Have fun. Go dancing. Drink good beverages. Make/eat good food. Don't feel bad for being sad & especially not for being happy or doing happy things. Love your kitties. They're perfect (and purrfect). When you need to, sink your head into them and let their purrs erase your troubles.