Since you have mentioned the term 'partial dropper', you must have taken admission in college and preparing for JEE again. Well, in this case, your schedule becomes quite hectic for you as you have to focus on college studies too along with preparing for JEE. First and most important thing I would like to say here is that remain consistent throughout the year. Since you have studied all the topics in past, you must be familiar with concepts. Now, choose a topic and do problems on that and see where are you making mistakes. Next time, try not to repeat those mistakes again. Prefer a good study material. Ifyou are unfamiliar with any concept, try to learn it and apply it in your problems.
Regarding your timetable, first you decide whether you are opting for coaching or self study. If you are opting for coaching, you should take weekend classes and stay regular with the class. But if you are opting for self study, you must try to study as much as you can on weekends. On week days, after your classes end, you can try studying in evening or afterwards. Try to revise theoretical topics between the class breaks. You must join some good test series so as to stay updated with pattern of exam, types of questions asked etc. It must be hard for you, but believe in yourself and your efforts.
All the best!
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