01:12:754 (1,2,1,2,1,2,1,2,1,2,3,1,2,1,2,1,2,1,2,3,1,2,1,2,1,2,1,2,3,1,2,1,2,1,2,1) - There is no consistency in elements placing.
You can check your intro 1/2 part. It is pretty straight-forward. But here 1-2 just appear in random places. For player It's a big confusion because he/she don't know where next 1-2 are
I think you have a wrong understanding. You need to start a stream here 00:55:563 (1)
Here the sample: https://drive.google.com/file/d/1-akjI4bBkZopX5KhD1sO7EhGvouxadY_/view?usp=sharing
00:49:917 (2,3) - I don't hear beats here. There is a triplet in 00:50:086 and very long stream you can make with reverse sliders.
00:15:957 (3) - Here you make the quintuplet right after the triple.
It's usually used in technical maps, but sometimes is using in anime maps.
Still I think this pattern is not a good idea here.
00:01:442 (1,2,3) - The timing looks like the technical in anime song (weird). Use 1/2 between sliders for more profit
Still wrong. You have beats in wrong places (not according to the music).
00:01:631 - You loose the beat here. 00:02:136 (7) - There is no beat by music.
You need something like this
https://drive.google.com/file/d/13R7SdDeYh62j1FZP4IgRBC4vOXzK9pJl/view?usp=sharing
00:27:229 (3,4,5,6,7) - Make the slider duration from 1st white to second 2nd white line (1 beat) and distance between sliders is 1/2 (blue lines). Then It will accord the lyrics