Reflections Of A Happy Dead Person Kindle Edition by Autumn Aldous 5 Star recommended

 If you don't keep your eye on your happiness then it will run away

Felicia discovered she had a natural gift for finding people's missing happiness until one day she got knocked over and killed by a bus
But this is not the end of her story, it's the beginning and one that will take you into a different version of reality than we currently know.