Twain’s autobiography was out of order. He put too much attention to irrelevant things, and so little attention to major things. He wasn’t able to organize his memories well enough in order for them to be coherent.
How would I make my autobiography less disjointed than Twain’s? First, I would write down in a piece of paper all of my memories and what I would want to write in my autobiography. I would then put them in order and cut the ones that are minor, and just put the ones that are important.
With this simple action my autobiography would definitely be less disjointed than Twain’s.