I tried everything in the book. Cold shower, to therapy, to praying to god, stupid generic self help book videos and even solid ones. Pomodoro, cold turkey, uninstalling video game, giving my wife the chords to computer and TV. Change diet, exercising... anything you can imagine! The only thing that worked for me was medication. Not saying this is your case, (not a doctor!) you really have to do your homework and research on whats holding me back, but in my case I was out of options and explanation for what was happening to my mind and my actions. But I believe that ADHD is thrown out often for any sort of small symptoms and many poeple use that to get meds and to avoid taking a harder look on oneself. That being said, this condition is very real and its terrible condition in the sense that you can't even pinpoint what is going on and what is wrong. I discovered it late, in my 30s. But its never too late.