Can you recommend any means for my jee prep (eg:any website, YouTube channel, books...)

You have enough time to prepare for JEE exam you should make your important time table so that you can complete your syllabus on time and you get proper time for revision as well.

You should start your preparation through NCERT books to make your concepts clear then you can refer other books.

Below are some of the recommended books for your preparation

Physics

You can go for HC Verma, DC Pandey, I.E. Irodov, Resnick, Halliday, Walker and S.S. Krotov.

Chemistry

You can go for Morrison Boyd, O.P Tandon, R.C. Mukherjee, P. Bahadur and J.D. Lee.

Mathematics

You can go for M.L. Khanna, A Das Gupta, R.D. Sharma, I.A. Maron and Hall and Knight.

Make sure you also refer previous year papers to understand the exam pattern and level of questions. Solve Mcqs for your practice and complete mock test series to analyze your preparation level.

All the Best!!