Study plan to get to 2100 ELO

thank you for this plan to come a national master because I am only 11 years old and i am 1500 elo and im like ..stock there so i want to find things to help me to become 2000 elo but first i want to beat mi coach that was 2150 elo before and already win versus garry casparov in a tournameent in 2004 but now he is 1800elo so i want to find more tips because iit does only 3 months that i want to be bether at chess