Having a little less than a month to prepare she opened up her journal and outlined the most important parts. First, prepare for seeing Harry and Ron again. Seeing them alive and healthy was bound to affect her more than seeing her parents considering she actually saw their deaths. Second, find Sirius before he broke into Hogwarts while trying not to draw attention from Remus. Third, find a room other than the Room of Requirement to research and train in (moving everything would be a pain if fifth year followed a similar course as last time). Finally, save Harry’s life and change the timeline.