ok look. i have a huge problem with these kinds of questions, like "how do i get better at [x]" because they're almost always looking for an answer that's a secret magical shortcut cheat to getting better. there's no such thing. play more, play mindfully, be prepared to put in the work. there are no shortcuts. here are some tips. all of these answers involve a lot of time and hard work. - aim for full combos/AJs on lower difficulties. doing nothing but smashing your head on high difficulties won't do any good. aim for perfect scores on lower difficulties, it will improve your timing, control, and discipline. with lesser notes, your attention and focus will be honed in, and by getting used to that feeling, you can carry it with you to higher difficulties. with any luck this will improve your sightreading ability as well, since you will be exposed to a wider variety of patterns in a short time, and aren't just tunnel-visioned on the same few high difficulty songs. - play lower difficulties and aim for higher scores/clears on them. if your typical score in chunithm is something like S on a 13, you can try aiming for SS on a 12+, SSS on a 12, FC/AJ on 11+ and below. the lower the difficulty the higher the grade/clear type to aim for. use folder clear lamps/labels to your advantage and keep track of clears this way. - once in a while, play songs/charts you don't like. you may find them bad or unfun, but the fact is that they are part of the game and therefore part of the overall meta. the skillset(s) involved may not be something you like or are good at but they are there and you should at least remind yourself that they are there. these are tips that apply to almost every rhythm game btw. no shortcuts. if you've seen anyone get good at a new rhythm game really quickly, it's most likely because they have applied these mindsets to other rhythm games, have built up their rhythmic sense and know how to approach a new game with these mindsets. again, no shortcuts, just experience.