I'm doing it right now, a few stupid deaths to start made me stop playing a little lol but now i'm pretty confident I'll nail this! Here are my saves so far:
1st: Beginning of chapter 5
2nd: Beginning of chapter 9
I intend to save at chapter 13 or maybe 12 I'm not sure, I'll see how it goes! getting to my 1st save was way harder than my 2nd for some reasons, I died a few times by mistakes, like shooting a window and then missing the red dot lol!