Gambling is an addiction. Having been there, in the moment you don't have control. I would consciously repeat to myself that I wouldn't buy weekly options and repeat in my mind all the reasons why it was just guaranteed to lose me money and how it did not benefit me. A few hours later I would get a random impulse and do it anyway almost without conscious thought. It turned out I had crippling ADHD and after starting to take vyvanse I just completely stopped gambling overnight, (along with binge eating and drinking).