Doing the same thing over and over again and expecting a different result.
I decided recently I would start weighing myself on Mondays and Fridays. I've been sitting right around 156 for way too long. I keep working all week to get my weight down, and then gorging myself with beer and junk food on Friday and Saturday night. I see it on the scale every week. It's lunacy. I'm up a few pounds every Monday morning. I work all week to get rid of them, then I see them again on Monday. Within about half a pound, I see the same two numbers every Monday and Friday.
I need to avoid the social drinking. It always leads to late night social eating. I need to avoid people. I'm better off. I save money and calories by not being around people. This was so much easier before I was married. I was good at losing weight because I was good at avoiding people. But if I am really in control, I should be able to socialize and not be so fat.
Get your shit together.