Defining your research question is the key to beginning, so while you may be clear on the area you want to study, chances are there are some nuances that you need to think through.
Part of this process may require exploratory searching in databases so that you can see what's already been published on your topic. Even if it's a new area, it's likely something has already been published in at least an adjacent area of study.
Some things to consider:
For more on the research question: https://writingcenter.gmu.edu/guides/how-to-write-a-research-question
When you pick your topic, it's not set in stone. Picking and adjusting your topic is an integral part of the research process! This video is published under a Creative Commons 3.0 BY-NC-SA US license. (3 minutes)
This work is licensed under a Creative Commons Attribution-NonCommercial 2.0 Generic License.