Oh, I'll expand a bit on what I meant by that then.
You have many slidershapes that are ver similar to commonly used simple sliders, but youve added nodes that make them look messier and unpolished, which is why I said to look at other maps and how they make sliders.
try to keep your simple slidershapes to 2 or 3 red or white anchors, and for red anchors try to put them in the middle or at 1/3 of the way from the beginning or end.
also if there are two sliders that are almost exactly the same shape right next to each other, just make one an exact copy of the other unless you have a reason not to.
Though I do think you should move on from this map and map another song, its not worth trying to continually fix your first few maps since youll have to remap multiple times and its better to just gain more experince with different music.