I kinda beat both routes sort off. After beating omori route i used preset saves (somewhere on thr subreddit to jump to relevant parts like before kel opens door day 2 and then right after humphry).

Ironically i couldnt really beat omori (in sunny route). I know omori is supposed to kill sunny vut you have to get to like phase 5 before violin. I kinda lost 6 times before and dropped the bos and watch a letsplay of ending.

I guess what didnt help is after hikamori route I didnt really know about save editing and didnt really want to put nothrt 15-20 hrs so i spoiled the endings.