I'd say it means do a couple nice things for yourself...like it doesn't have to be anything too extreme. I mean for example something I might do is go sit outside on a nice day and have a cup of tea...or maybe take a bath with lavender essential oil and epsom salt in candle light or even just get comfortable and watch a movie I like. Basically it means take some time out of your day for yourself, do what you want and make it about you try to let the negative stuff go for a while, while doing it but don't beat yourself up if you still cant get it off your mind.