Sorry about that, seems like your comments got flagged by the automod for some reason? Really don't understand what its criteria are...
As for a walkthrough... I've gone back and forth on whether to do one, honestly. Kinda torn on it, for a number of reasons.
Still, I don't mind helping if you're stuck! For Chapter 5, I posted some advice in an earlier reply (to Padre_Bombita) that should be helpful there. And for Chapter 4, you don't need to prevent it from breaking, but if you want to try then keep an eye out for secrets when you get to Chapter 6. Might find a useful hint there.