dude first of all being an jee aspirant i understand your pain, but if it is compared to your happiness this shit is worth nothing . many things in life effect our behaviour,but it depends on us on how we take it . you got low percentile in jee , that means you wont qualify but think it this way if u qualified and went to a nice college of your dreams and passed out and are doing a job you wanted to do which pays to resonably , but if u didnt and your life wanted you to become much more than a job applicant and bacome the next millionare , you wouldnt know that ,life is mysterious quitting it gives nothing , facing it can give everything. forget everything that makes you sad and learn to be happy that you have a life and find its purpose if not jee than in everything else.

Hello,

Don't think like this.

You should prepare very well for april session. Use NCERT for physics and chemistry and solve numericals from other books. Solve maths question as much as you can. There are many videos in youtube and unacademy which will help you learn concepts in very less time. view those and try to understand them This will make easy for you to remember. If you are forgetting then draw them and try to remember.

If you belong to CRL then that is good thing. Cutoff for CRL is upto 2lakhs for NIT campus and you can get an admission for sure if you perform well in april session. You can view previous year cutoff to get sure.

https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

Try to read as much as you can. don't try tp grab every thing as you can't. Use videos to learn concepts and solve numericals and solve previous 8-10 years jee main and advance question so you will get an idea how to solve numericals. Learn them while solving them. solve 10-20 daily from PCM and understand them and increase it daily by 5 questions. you will cover mostly all questions.

and jee is for getting an admission in a college. it is not a big deal.  students are studying in private college through direct quota and has made good career and living a good life.so don't be upset for that. There are so many options and choices in life. Not all the candidates who appear jee join in top colleges. they join lower colleges too. The main point is how you create your career. If you have a will, you have way.

Do as much as you can. Rest well and invest atleast 10 hours daily to solve numericals.

here is an article for tips to qualify jee mains, read it:-- https://engineering.careers360.com/articles/how-prepare-for-jee-main

Hope it helps!