untick scroll speed scaling with bpm on options, get a skin you like and set a scroll speed you're comfortable with(if you dont know how, there's some videos on youtube)
after that is just playing more, and e the usual, dont obsess replaying the same maps all the time, try to play as many different files as you got, dont avoid patterns, even if you dont like them, playing them you'll get better eventually
dont play maps too hard nor too easy, try to keep it a bit at the edge of your lvl to improve, if you get anything below a 90% on a map that's already a red flag
ig try setting goals to keep yourself motivated, what will make you improve the most in this game is motivation and patience, negativity will usually get you nowhere, so try to stay positive even if a day you're not playing as good as usual or have a few days where you're "rusty", just know that happens and play as usual, you'll still improve
MMHHH, idk thats it for now, at around 5* you can start training with pattern oriented packs, but for beginners, just play as many different maps as u got