Except for when your life is as messed up as mine and you can somehow change your memories and literally end up believing them. I don't know how much of my life I actually remember or what made up and ended up believing along the way
It happens to everyone as they grow up. You find out who you are and what you want, and then you realize that people you've known forever don't see things the way you do. And so you keep the wonderful memories, but find yourself moving on.