This image is from an 11th century manuscript, reprinted in an article in The Guardian about things monks wrote in the margins of the manuscripts they copied, including "writing is excessive drudgery. It crooks your back, it dims your sight, it twists your stomach and your sides."
Librarians are here to help!
Primary sources are records of the past. Historians use primary sources both to answer questions about the past (what happened? why? what was the experience of people involved? What insights about a time and place can we get through direct examination of historical evidence?) but also to figure out what to ask.
You may find it easiest to start your research by looking at a source and simply thinking about what questions it poses: who is that person? why did they say what they said? What does this thing mean? What does this document say about women's roles in the middle ages or how the economy worked or what peasants really thought or what kind of religious experience they had? By using multiple sources, you can look for patterns or contrasts.
There are several collections of primary sources on reserve - behind the information desk. These collections generally provide some background and context as well as the primary source itself.
Good question! You are looking for things from the middle ages such as:
When these are translated and published for a modern audience, they usually have an introduction that explains the context of the source. You'll need to read carefully to separate that modern material from the actual primary source.
If you're researching your own topic (with the approval of your instructor) these techniques may help you go beyond the resources that are on reserve.