I just graduated from MSc and I did my dissertation in 96 hours.
If anyone needs help for qualitative research in social science, feel free to ask me here and I can guide you (e.g... epistemology, sampling methods, coding, etc etc)
Best tip I can advise for quantitative/qualitative research in social science (and other subjects) is...
1. You have to rationalize everything (e.g. your methodology, your topic, your questions, your potential bias, etc).. like.. Why did you choose to have a sample size of a particular number? Why is the sampling technique chosen? what is the rationale of your hypothesis and research question and how do they relate to your argument and topic?!?! Two common ways of rationalizing is to use journal research to backup your point, or use previous research / studies that corroborates with your methodology.
2. The epistemology / methodology has to make sense... e.g. hypothesis are tested using quantitative statistics... to keep things simple, don't use hypothesis with qualitative research. If the epistemology and research doesn't make sense, then your whole research is gonna be flawed from the start to end.
Good luck