By when exactly should my syllabus be complete

9th just khatam hua abt a week ago and I started looking through 10th from what I see 9th ke comparison me the syllabus is either the same or bigger so since mere November or October se preboards h and September ko half yearly h when should my syllabus be complete by? I feel overwhelmed as fuck I know a lot of you are gonna say it’s only 10th and boards halwa hota h etc etc but judging by the paper pattern this time and talking to the seniors ik the paper was not so easy please give me a reasonable time frame by which my syllabus should be complete and I can start revising/start solving PYQs.