Bashing yourself for not doing work is only going to make you even more reluctant to complete it. If you didn't finish the task you intended to have finished, that is okay. Even the best of us make mistakes and that's only normal. Mistakes are often not normalised which is quite a handful and we feel incompetent, lost, and fazed. Forgiving yourself for your mistakes in the past can let you focus on better things on your way in the future. Enjoy today, worry about tomorrow later!