Dear aspirant !

Hope you are doing great ! Class 12th marks doesn't matter in future . They don't decide your profession ,if you work hard and have interest in becoming a doctor then definitely you will be a doctor many great people are there who achieved their class and they had less marks in academic ,  Also there is a quote " A single sheet of paper can't decide your future !

Just be dedicated and devoted and work very hard .

Again i am repeating ,work very - very hard . Make your parents proud !!

Hope it helps you !!

Thanking you