Developing one's creativity regardless of what occupation you are in, always improves self-esteem and helps you to feel uplifted and happier. The benefits of developing your creativity, whether through journaling, writing or dabbling in art has been well documented. So if you are not in a satisfying job, spend time being creative and it will help your overall satisfaction levels and help you to feel more fulfilled (from what I've read on the subject). Listening to classical music also helps to enhance your creativity. Also, helping others through volunteering is another way to have a more satisfying life and do good at the same time.