I had this wild imagination. I was never me. All my childhood photos, I'm in fancy dress, playing a Russian refuge or Marvelous Mad Madam Mim.
Most of our childhood is stored not in photos, but in certain biscuits, lights of day, smells, textures of carpet.
Childhood is a short season.
One of the best ways to make yourself happy in the present is to recall happy times from the past. Photos are a great memory-prompt, and because we tend to take photos of happy occasions, they weight our memories to the good.