Me time. It's not only advisable, it's a necessity. You must put time aside for yourself. Life can be stressful, insanely busy. The demands on your time can wear you down, cause you sleepless nights, aches and pains you didn't know you had and mood swings you don't want. It's all about winding down with some time to yourself. And you not only deserve it, you desperately need it. Plot it into your diary. Make a date with a friend to have coffee/lunch, take the time to read a good book or watch something you've been hanging out for. It's not selfish. It's sensible.