Make a list of what you like about yourself. The qualities can be trivial or big. You can say that you are always willing to help a friend, or that you like the way a wave of hair falls on your forehead. What's important is that you think about yourself deeply and thoroughly, perhaps in a way you never thought of yourself before.
Be honest. Include only those things that really please you. Are you efficient and responsible about home and car repairs? Do you have a special artistic flair when it comes to your clothes? Is your house always a hospitable haven for your friends and neighbors?
Don't underestimate yourself. Don't overlook or minimize anything. Do you like the sound of your voice? That you're a good listener? That you have a green thumb? That you have leadership qualities that emerge in subtle ways?
Keep your list up to date. Add to it when new things come up, or as you realize that you have more attractive qualities than you first thought.
— Alan Epstein in How to Be Happier Day by Day