Try and limit the amount of time spent with people that drive you crazy. Its a way of helping those who may have less. Keep daily expectations manageable. Get out in nature, walk, hike, enjoy feeling the winter chill, or the rush of skiing. It's okay to enjoy yourself, to laugh and to have fun.
Laughter is good for the soul.
Go to a bookstore or library and try browsing in a section you wouldn't normally go to. Open your mind to a different style of writing. Go to a music store and listen to music. Try an new section. Go to or rent an uplifting movie.