I think knowing your type can help a lot! This New Years I sat down and tried to figure out why last year had been so stressful and horrible despite finding a job, finishing projects, getting "prettier" through clothes and a haircut, etc. I found that I hadn't been nourishing my INFP self and had, in fact, been spending a lot of time talking down to myself and hiding my feelings from people. I wasn't doing anything to nourish my strengths/interests (spirituality, giving back, private reflection time, art). So maybe reading about the strengths of your type will help you realize what's missing in your life that would make you happier and more relaxed. Similarly, you can work on reducing the weaknesses that may make you more stressed out.