Please help! - Gcse revision

Hey! Does anyone have any tips / what they do for revision if you do any of the following subjects, at this stage? I feel like exams are soooo soon and subjects like science just arent going into my brain when it comes to memorising info.
- English Lit and Lang (Macbeth, Jekyll and Hyde, Animal Farm and Power + Conflict poetry)
- Combined Science
- History (Germany and Dictatorship, Edward I, Health and the people, Conflict and tension)
- Spanish
- Food tech
I have my art exam next week on Tuesday and Wednesday and my Spanish speaking exam the week after so if you have any tips for that would be helpful.