I need help !!

Okay so my exam’s on 28feb ( coaching wala ) and i have one chapter left ( hydrocarbon ), the exam is a practice test so it is of 240 marks, 15 questions one subject and i am assuming, there would be about 6-7 questions from hydrocarbon as only 2 chapters are included in that syllabus. So i need some serious suggestions, like should i focus on the chapters i studied or should i watch lectures ( as many as i can ), although am sure that I cant complete it and maybe cant revise either but i can attempt few questions if i have the basic concept but at the same time, if i focus on the chapters i studied, i can score better in that. I am so confused wtf, please tell me what to do !!

And i have PE exam tmr ( board )

Don’t ask me why i haven’t watched the lecture, board exams cracking me up rn

Pata hai aaj kya hua