ah i dont do history but i also do an essay based subject. for content, i do mindmaps and , i also have a gridded table for keywords and definitions. if you dont need this maybe you could use it for key dates and events?
if youre struggling with questions and essay writing, make sure you plan. have ur structure solid before you jump in. Understand the difference between questions and what theyre asking you and whether there should be a different format in ur answer. (im assuming that each question should not be approached in a similar manner if im wrong then just ignore this hehe)
plan essays for every topic/subtopic etc and eventually substitute planning for actually writing them. email them to ur teacher to have it marked as well and you have feedback. not sure if this really helps, but all my history friends complainnnn about essay writing haha. hope someone who does history responds to this. if not try repost this under the a-level subjects section instead of motivation?