Your story reminded me of a case I personally know of a guy who was a very disciplined poker player for a period of time and one day won a sweet €90000 prize in an online tournament after a lot of effort. Apart from poker, his life was a mess (living with his mother, no even a driving licence, no serious job). He spent the whole amount on partying, hotels and cocaine. He never got again any substantial money from poker and his life is still a mess last time I knew.