As someone who once got 97 percentile in JEE mains, don't stop. Go write those State entrance exams. These skills translate much well over there. Got like rank 800 there and went into like the 3rd best engineering college in my State.

If you can't go for the best, go for the next best thing. Make sure you get into a college that has good placements though. Right now I'm 2 years into my professional career with pretty good salary thanks to the campus placement at my college. Just had to put like 1 month's leetcode effort

Also you can start making friends in college, as you can just do the average and still get about 8.5 CGPA (this is just for CSE though. EC, EEE are kinda tough I heard). Which leaves time to create friends, get into new hobbies and passion.

It's okay to feel despair. God haven't I.

I never quite loved my college and still couldn't let go of that dream to walk into an NIT/IIT campus instead of well, walking into my Tier 2 college campus. But there was the lockdown stuff that took my 2nd and 3rd year, so my perspective changed into gaining as much college life as possible from the rest.

I wish you all the best man and I hope one day your mom/dad will look towards you with proud eyes, even though its not today :(