Sometimes people think that because their time is broken up and they have no long, uninterrupted swatches of time for working, that they may as well not begin.
My advice? Pretend that you will never have such time again. Tell yourself that all of your days will be as crowded and as pell-mell as those you have had lately and then figure out how to work in them. Unlimited time is like an unlimited bank account-- not a luxury most of us will ever get to enjoy. You have heard the bromide "if you want something done, ask someone busy to do it." That holds water. Limited time can increase our focus, making us make the most of the time that we have got.