Hello Aspirant,

This depends upon you, you should think and decide your ultimate aim at this point of time because YouTube is doing it's work we cannot stop them from doing their work but we have to do our work. Think about your ultimate aim and then think that whether those videos are going to help you in reaching to your ultimate aim or some other things then you will gradually develop a will power and dedication towards your ultimate aim. At this point of time when there are less than two months left for JEE-Main February '21, you should be more focused toward your preparation so whenever you open YouTube for your studies then only go for those videos which are going to help you in reaching your ultimate goal. Distraction is the thing which can be avoided by ourselves only nobody else can help you to take out of distractions. There is another way to overcome such distractions, whenever you open YouTube if you found any interesting video then save it in your Watch Later Library after completing your studies or if you want to take a break in between of studies you can watch it and enjoy it in that time because any normal human cannot only study some entertainment is also necessary. So I hope now you will be able to decide what you have to do and how to deal with such distractions.

For your reference, I am also enlisting down some chapters which have greater weightage as compare to that of others so you can focus more on them in this last time of preparation for JEE-Main 2021 :-

@Physics

• Modern Physics - 20 marks
• Heat and Thermodynamics - 12 marks
• Optics - 12 marks
• Current Electricity - 12 marks
• Electrostatics - 12 marks
• Magnetics - 8 marks

@Chemistry

• Transition Elements and Coordination Chemistry  -  12 marks
• Periodic table and Representative Elements - 12 marks
• Thermodynamics And Gaseous State- 8 marks
• Atomic Structure - 8 marks
• Chemical Bonding - 8 marks
• Chemical And Ionic Equilibrium - 8 marks

@Mathematics

• Coordinate Geometry  -  20 marks
• Limits, Continuity and Differentiability - 12 marks
• Integral Calculus - 12 marks
• Complex numbers and Quadratic Equation - 8 marks
• Matrices and Determinants - 8 marks
• Statistics and Probability - 8 marks
• Vector Algebra - 8 marks

I hope this information helps you.

Good Luck!!