Following the responses from similar, previous posts for Geography and Legal Studies, I have created a revision schedule for students in the lead up to HSC Trials for Ancient History. You will obviously need to modify it based on your options, but you can at least use it as a scaffold.
Have a look at the previous posts regarding the study planner based on other subjects for more details.
Deputy Principal at a Sydney high school. Coordinating author of the Geoactive text book series.