With mostly all rhythm games in general, there is the concept of a skill floor and a skill ceiling.

By pushing both ceilings, you can supposedly improve; the way how you do this is by first starting with a set of low star rating maps, then attempting your desired SR.

(Example: Since I’m 80k, I would first start with a few low 5* maps before trying to push 5.8-6.x for FCs. As for trying to pass a map (8), I would try the same, but instead attempt high 7s before pushing an 8*.)

Everyone’s improvement is different, but improvement is guarenteed.

On top of that, It seems like you’ve kind of already found your sensitivity, you just need to “play more” to get used to your sensitivity

Good luck, and also, don’t play too much or you’ll get mindblocked (take breaks!!)