27. Learn to let go of grudges and avoid moping
Times can be hard, and it may take a lot to overcome adversity, but sitting around and moping about it is just counterproductive. If you have a big fight with someone and fall out or get hurt over a small issue, you will only lose a friend or life partner and remain sad and bitter. Forgiveness is a much healthier way to deal with issues that should be left in the past.