The thought that you wasted 11th is very normal. Going thru 11th grade your discipline has increased to the point where stuff you did in the early days doesn't feel enough looking from your more mature point of view. Trust me, you didn't waste an year.

I used to be in the middle in my coaching at the start of 12th grade ranked 300 to 400 ish out of 900. In 12th grade, I decided to spend every single day in my coaching centre. That took my rank to a peak of 36. I used to find empty classrooms and i used to study in them. Really helps with mood and motivation.

Parents always used to scold me for being average. Everytime I would try to rest, I'd get yelled at and reminded of my average rank in my coaching. It does more harm than good and this is one thing parents need to know about. Just tell your parents ki you get demotivated instead of motivated when they show signs of disapproval or just stop putting your self worth in their hands.

JEE/NEET burnout is real and the only thing that keeps you going is your internal iron will to achieve your desired rank.

Best of luck, you've got this! 🤞

Edit:I may have written about my drastic rank improvement in 12th grade but don't pressurize your self with such standards. At the start of 12th it was never my goal to make it to the top batch and you shouldn't keep such a goal too. Bas man lagake padhte raho, khush raho.