The same goes for methodology. What about it? Do you need to do qualitative or quantitative research? If you decide to do interviews: what does that imply? For example: creating an interview guide, deciding on a sample strategy, acquiring respondents, doing the interview, transcribing the interview and coding the interview. 

If you made a new, more extensive concept map, you can make a Gantt chart based on that (use Google for examples) in which you put all the specific steps (some taking place at the same time) with a time planning. You can even decide to skip revising your concept map and immediately make a Gantt chart with more detail. 

Distinguishing these different steps on a detailed level helps you to create a more realistic planning. But more important, it enables you to create a sort of framework of all the steps you need to take until your graduation. It gives you a clear overview and direction. From that moment on, it is a matter of finishing each step until you reach the finish. 

Good luck!