i think you should try mapping normals in a bit more flowy way (or how do i say this xd)
for example i think for new players its much easier to follow if a note appears in the direction where the last slider ended, and since most players who just started the game use the basic osu skin with visible sliderends, in places like this 00:01:729 (2) - they get confused and don't know which end of the slider should they click
so uhm what i could recommend if you map a slider after another slider is try to make only a minimal angle change from the end of the first slider, or things like this 00:17:023 (2,3) - where the sliderend of 00:18:199 (3) - is clearly further away from 00:17:023 (2) - than the sliderhead