Failed in 4 subjects 12th cbse . Comeback possible?

Phy - Ch 3,4,5 maths - 1,2,3,4 ,10,11,12,13 Chemistry - 2,4,5 ,8,9 Bio - 4,5 ,9,10 , Evolution Eng - Rat trap , Enemy , Indigo , aunt jennifer tiger , roadside stand and Writing skill . For phy - watching lectures of shimon sir for chap 3 and 5 , writing derivation and ncert sums for practice for maths - Full ncert + Mtg random sums . Learning from error in past exams for chemistry - All ncert sums , writing reactions and revising them , Mtg for numericals Biology - Pw english medium and Xylem neet tamil for lectures and Mtg for questions practice English - Reading all the lessons line by line and reading patterns for writing skills . On top of that Believing I can do it #comeback #arise#justdoit #discipline #action #academic #class12 #cbse