When I was young

When we were younger than our second decade, life looked in a totally different way than we see it now. New ideas emerge and old ones vanish.
But how satisfying is it when you see your own point of view and observations in life come to be useful and even save your lives sometimes?
Allow me to present what ideas I had when I was a young lad, explaining which ones of them were right, and which were not. Which ones saved my ass, and which ones threw me in actual hell.
Enjoy it as much as you can.