 I would say the first thing is, as Tomas said, come out of isolation. Talk to another human being about the behavior that you want to change. By giving it words, you will get more information and more awareness than you had before. And then I would say create a very specific plan for what apps you're going to delete or what websites you're no longer going to visit. Make some contingencies for how you can still do your work, communicate with friends and family, generally enjoy your life.