Weird, I save preffy often, like every few minutes or when there is any kind of 2+ options choice. I have 84 saves while writing this.
But why? There is a last choice button in the game for this purpose, if you press last choice you jump back to the previous choice you made, and you can do that quite a lot... there has been some issues in the past that should have been sorted but, you don't need 84 saves. Then you also have the replay feature.
I know the feeling cause I do this always in ren'py games, but I got so annoyed with that in games, that i always had to rightclick and save, that I made sure to do it automatically without you having to think about it inside my engine. It's enough to have a couple of saves, you can always use the phone replay and last choice if you really wanna go back, and then save again as new for that path
There shouldn't be any "oh shit" moments.
Each save file contains saves that are done automatically every choice you make, when you press last choice it loads that save.
For example
First choice, you peek in shower,
Second choice, you give the box,
Keep in mind that you cannot jump forward if you go back, you have to re-do the choices in that save.
I mean, easiest thing is just to try it, see what it does, open up one of your saves, on the dialogue panel (either in dialogue scene or when you click something in the house with text on it) there is a button called "Last choice", you can click it a couple of times to test it out.