Bro I'm cooked fr🥲

I am new to Reddit, so apologies if this is not the right way to post!

Hi everyone,

I'm currently in ICSE Class 10 and, to be honest, I haven't properly started my syllabus yet. I'm feeling a bit worried because many students have already completed a good part of their syllabus.

I wanted to ask for some guidance from y'all :-

1. How should I start covering the syllabus now?

2. Should I focus on completing the chapters first or start question practice along with it?

3. What is the best way to revise subjects like Physics, Chemistry, Biology, Mathematics, History, Geography, and English?

4. From where should I practice questions? Are textbook questions enough, or should I use question banks?

5. How often should I revise completed chapters so that I don't forget them and more importantly how should i revise them?

6. Is it still possible to score 90%+ if I start preparing seriously from now?

7. How should i plan my daily study?

Any study plans, revision strategies, or subject-wise tips would be really helpful.

Thanks in advance.

( I know it probably sounds weird that I'm already in Class 10 and still don't really know how to study effectively. In earlier classes, I wholly relied on ratta (rote learning) and managed to get very good marks without developing a proper study method. Now that the syllabus is much bigger and concepts are more important, I'm realizing that approach isn't enough anymore. Any advice would be really helpful🥲🙏 )