Read about an interesting topic and keep asking the question Why? How long do I plan on working?
7 - Creating a work plan - Dissertation Calculator - UCF Research
Dissertation Topic: (This is going to take up a major part of your time. Look through the dissertations of previous students in your department: the topics may give you inspiration, and they may have useful suggestions for further research. Primary resources: the main data will. Some courses schedule the dissertation at the end, while others have it running along concurrently with other modules. If so, estimate how significant the problem is to answering your research question, and try to calculate what it will take to resolve the situation. A workplan should also provides answers to several important questions related to the structure of your day, including: What will be the primary focus of my work today? In particular, having a clear plan that tells you what to do and when to do it will help you take control of your work instead of allowing it to control you.