Unresolved childhood trauma. The underlying strategy to heal yourself from this is to consciously step far outside your comfort zone from time to time so that you can perceive yourself more accurately to see what inside you is draining you whilst simultaneously recondition yourself out of these maladaptive patterns. The world traumatizes us all. We don't need to be caught in a warzone to be inflicted with just the right wound to cripple us in the most debilitating ways. The solution is to grow. Challenge yourself with a big mission that casts you out of what is familiar to find yourself better than you ever were before. And there is a smart way to do this, a lazy way to do this, and a reckless way of doing this. Balance is key.