I wish I could tell you. If there were an easy fix for writer’s block, no one would have it.
My sole real observation on the topic of block is that writer’s block isn’t a disease. It’s a symptom of the disease. There is something causing your writers block: you’ve gone down the wrong road in your plot, you haven’t learned how to outline, you’re trying to make yourself write something you don’t really want to write, you’re depressed or stressed, etc. Figure out the cause and fix that and the symptom will probably go away. Now, I don’t know how useful that is. Probably not nearly as useful as this essay by Elizabeth Moon, which strikes me as one of the few useful things I’ve ever read on the topic.