Forgot what? Where are you now? It should not be possible to lock yourself in this game game. Also you can start from the specific chapter, not from the very beginning of the game.

i missed finding the second story and i cant get back because i cant go back through the narrow opening. i only see continue, i don't see a load save point

disregard, i found chapter select . i must be blind lol

You can replay chapters later and gather pages you've missed. The ones you've already found will remain.

good to know thanks

You'll forget about all that when you get to the Demon Babies. Wait and see.