Can somebody from IIT give me some motivation and tips?

I am currently studying in class 12th , i am going to appear for my boards during mid February, my boards are going to end on 6 march.. I want to prepare this year full with my best to appear next year for mains and advance but looking at my academic status i never went to coaching i wasted my 11th and 12th but now i have only prepared theory for boards .. taking separately about subjects in 11th I solved some numericals by just reading from a book (new melinium physics) I solved the numerical of 1-d and 2-d motion, taking about chemistry my organic is zero and inorganic is complete but only theory no numericals. am good at maths actually i fukn love doing maths if i get bored during the day i just make a question and solve it i am nearly going to finish my 12th math’s in days .. but now i want to know is 1 year enough for IIT? Can i do it ? My parents have full faith in me but can i do it?