Research - How its all going so far

I've spent the past few months researching a topic of interest for my Masters Degree. I've been focusing on the history of bodily autonomy from past to present. A good place to start I felt was to track from the 1900s up until the 2000s. Theres so much information to digest that I'm struggling to really narrow down what I want to research exactly. I feel I need to have a full grasp of the history of womens bodily autonomy throughout time before I can begin to develop a project based on feminism and these topics, so wish me luck! because I'm now researching from the 1900s back to ancient Ireland, and its going to be one hell of a journey!