It is not that all the details are important. The point is to show that you can connect specifics to meaningful generalizations. Be especially careful when discussing social groups. Again, the point is not to drown you in detail, but to make your generalizations meaningful. Think about your assumptions.
Historians are interested in change, and in how it happens.
Problems on this front almost always detract from the content and argument, and they have to count in your grade. Writing is a skill that can be learned and improved. If you have trouble, do not despair. In addition, the Learning Center provides tutoring, help with papers, and other resources. You pay for this center.