f you can learn how to distract yourself from downer thinking as a child then you will not spend a long time in a distressed state and thus depression will not become "hard wired" in the brain due to long-term concentration upon depressive thinking.
However, whatever methods to get out of downer thinking you don't learn as a child you can learn as an adult and even though depression will hit you more often, you can always get out of it by using brainswitch exercises or physical exercise. As you have more practice in getting out of depression by doing simple brainswitching techniques, you will become better and better at getting rid of depression when it comes. To the point that much of the fear of depression will also be eliminated. A. B. Curtiss