*listen and read about other researchers methodologies - they're not going to all be listed in your textbook
*there are many methodologies to choose from and you may need to research a few before finding the right one
* if it's not quite the right fit then keep looking
* you may need to borrow elements from another methodology
* talk your ideas out with your supervisor - that's what they're there for - to help
I'm sure there are more that I can add as time goes on. How did you find your methodology?