Reviewing your progress each month is a wonderful way to help keep yourself on track. Even better if you do this review with your supervisor, so make it a point of meeting with or emailing your supervisor every month. Every single month.
This gives you a regular deadline to work to. Each month, with your supervisor, you can set tasks that you plan to complete. At the end of each month you report back on progress. Look back on your research journal to see what has happened – often lots more than you remember. Not keeping a research journal? See this posting for why you should start now.
In this posting Arjenne Louter, The Dutch PhD Coach, talks about 5 questions to ask yourself at the end of each month and how doing this will help you stay on track to meet your deadlines.