Hii

Yes YouTube is sufficient for clear jee advance exam. But you should try to clear concept and then you solve any questions. You should try to solve previous year question. Only you use YouTube for clear concept video. Then after you try question without seeing solution. Then YouTube good for you.

Hello there

Earlier, there were not that much sources available online for the preparation of joint entrance examination mains and advance. But now there are various organizations available who are giving all the materials along with the lectures on their platform via online mode. And many people are cracking jee mains and advance via theirs online platform help only. So I would suggest you to subscribe or purchase any such platform subscription as it will help you a lot in your preparation because anyone who is preparing for any competitive exam needs mentor and strategy which they will provide you very much better. And this will be like a self study only. Now again if you want to do join any coaching institute offline then you can do that one also and to know the best coaching in your areas you can visit there and can ask to the students about the faculty and the teaching style of the teachers present at that coaching.

I hope it helps you!

Good luck!