No one really knows the point of life so why think about it? If your organizational skills aren't up to par, then perhaps try practicing. It won't be easy. It takes practice to become good at just about anything you do. I can promise you that not everyone hates you and I can also promise you that you don't screw up everything you touch. Try not to speak in absolutes, using words like "everything", "nothing", "always", "never", etc. It causes more stress for yourself and the people around you.
As far as stress, there is such a thing as positive stress but for the negative stress in your life, there are many things you can do to reduce it. Do a google search of reducing stress, or relaxation techniques. The results are countless.