What helps me when I have idle time is to focus on helping other people. This does two things, 1) It makes me feel good, because I feel like the experiences that I've had are being used for something positive, and I feel good about myself because I'm helping someone else to get over something that is troubling them. and 2) It keeps me busy, and I end up forgetting all about myself, because you can only focus on one thing at a time. There's an old saying that when you are worried about something in your own life, focus on somebody else, and usually it will take care of itself. Usually, we worry about things that we can do nothing about, and this helps us use our time wisely instead of trying to "kill" it or something in order to stay busy. Hope this helps.