Set up good binds- one independent finger per build, make sure you can strafe left / right while editing, set up double movement binds if you’re kbm, watch Palism and unknownarmy for movement, clix and people from parallel for mechanics. Do daily kovaaks and read aimer7’s guide, then just spam the shit out of edit courses and work on proper movement within said edit courses (always giving yourself right hand peaks, occasionally immediately reeditng, and always swapping back to shotgun whenever you place a build). Good luck