Do something nice for youself, that you would like. Take a deep breath, go outside and catch some fresh air or sunshine, if there is some available, of course! Or eat a piece of cake. Watch a TV show you like. Read a page of poetry. Or crawl under a big comforter and take a long nap, preferably with a pet at your side.
Pick just one small thing to do. Any small thing. Don't worry about the rest. Let that be enough.
Do the same thing tomorrow--do something nice for yourself and pick a small thing you want to accomplish. Don't try to overdo, just try to get some motion instead of all the inertia. Sometimes just breaking the ice and doing one thing will help you disrupt the log jam that is bogging you down.

