The best exam schedule is one that mixes learning, active revision, and practice, protects your sleep, and is realistic enough that you actually follow it. A beautiful plan you abandon on day two is worse than a simple plan you stick to.
Work backwards from your exam dates. List every subject and topic, mark which ones are weak or carry more marks, and give those more time. Spread subjects across the days rather than spending a whole week on one, because your brain remembers better when it revisits topics over spaced days instead of cramming once. Each study day should have a clear target, like finish and revise these two topics, not a vague plan to study all day.
Balance the three kinds of work. Some time to learn or relearn a topic, some to revise using active recall like testing yourself, and some to solve past papers and practice questions under real conditions. Practice papers matter a lot, because they show you what you actually know versus what you only think you know. Build in short breaks, meals, and a full night of sleep every day, especially the night before an exam, because a rested brain scores better than a crammed exhausted one. Keep the last day or two for light revision and confidence, not for learning brand new topics in a panic.
Example: Instead of studying only biology for five days straight, rotate subjects and return to each every few days, which locks them in far better than one long stretch.
One practical tip: Include past papers from the start, not just at the end. Testing yourself early reveals your real weak spots while there is still time to fix them.