Dear aspirant !

Hope you are doing great ! No need to go in depression ,a lot of students face this problem very year , and you can take many examples from the history of India ,many great people who have less marks in their academic but now the are superior to others . May be you are not made for study ,there will be another talent in you . Everyone has one hide inner talent , explore yourself and find that one talent and then work hard on it ,it may be anything like football , cricket ,dance , athletic ,sing ,cook etc . Class 12th marks doesn't decide your future .

Hope it helps you !!

Thanking you