Cool stuff, I mean, your lines aren’t that bad 😅 just something that gets better and better but yeah. What kind of stylus or tablet are you using?
Do keep in mind that rotating your tablet (if it is screenless) can be very confusing for your hand eye coordination
Clip studio paint’s tutorials website has some great pointers in how to get used to those
Also, I know what you mean about the screen being very slick, I use an ipad when on the move and at first it felt weird, but I think getting used to it was beneficial as the nib hasn’t worn down a bit and now it feels natural really
Cheers
Link to tutorial
https://tips.clip-studio.com/en-us/articles/1217