Log out. When you end up on the home page anyways, it'll be your cue to pause, think, and then act. Decide that it is not a good idea to log in. Ctrl+tab to y

Log out. When you end up on the home page anyways, it'll be your cue to pause, think, and then act. Decide that it is not a good idea to log in. Ctrl+tab to your work and keep trying to make progress. Repeat above till you make some actual progress. Take a step back and examine why are you craving this comfort -- what in your life is lacking that makes so uncomfortable that you want to soothe it with internet immediately.