Help with improvement

[Michael Scofield.Stg]

Ok I've come to a brick wall. I can pass many 10 footers on keyboard. But I still can't pass ones that many of you are like Easy, AAA. I still have trouble with PSMO hell even PS, I get like 15 noncombos. I can't pass klung klung. And I have trouble reading many of the songs like cynic, middle part of k1807 with the notes like instead of LRLRLR or LLLL it's LRDURLUD.

Any tips would be appreciated.