I was addicted to browsing during my work. I knew I was wasting my time and it is not helping. I would resolve to not so it again. Then slowly I would fall back into my old ways. What helped was realizing that it is easy to do something 100% of the time than 95% of the time. Previously rationalized when I was getting distracted by telling myself it is just for 5 mins which inevitably resulted in more rationalising and realizing only after an hour. Now when I get distracted and realize it, I just stop it there and then and get back to work. I also made some changes like having specific internet time and strictly avoiding it during other time also helped. Read the book deep work by Cal Newport. It has these and various other ways to focus more. https://www.amazon.com/Deep-Work-Focused-Success-Distracted/...