Structured method for chess improvement to 2400 from 800

Post back here in a year and tell us how close you got.

Even if you are a genius / prodigy, study 10 hours per day, have a coach, and are really young (kids learn faster), there is no way you can go from 800 to 2400 in a year. Maybe 3-4 years at best, if you're currently <10 years old and have Carlsen's natural ability.

I was expecting to see a 2400 rated player tell us how he got there from 800.
Lewis and Clark didn't present their map of the American Northwest to President Thomas Jefferson until AFTER their Corps of Discovery Expedition, guided and saved by American Indian woman Sacajawea who they met on the way, spent 1804-1806 crossing the Great Plains, Rocky Mountains, Sierra Nevada Mountains, and finally arriving at the Pacific Ocean.
I suggest you put in the same sort of effort with someone wise to guide you before telling us how to get to 2400.