so any chance we can see on the save files which route were are on?
old save was fucking youngest girl, think it was named harem? then tried loading elly route, but I think it just led to fucking youngest anyway...
Not sure if this is what you are asking about, but just in case: you can make manual save points as you play through the game by hitting the Esc key or clicking the right mouse button (or equivalent for your system) and then clicking on a Save slot of your choosing. There are lots of save slots and they can be overwritten, as well.
This game is interesting in that sometimes creating a save points will automatically generate a label for you before you commit the save, based upon what path you appear on at that point in the game - it's not entirely perfect, but is generally pretty useful.
You can also type anything you want in the save point label, including deleting the automatically generated label text and putting in your own (though, a label is not required to make a save point - it's just highly helpful). Since there are various paths and choices related to those, it's a good idea to make save points along the way and label them appropriately, so you know which ones represent the Elly path, Ada path, Emily path, Harem path, etc.
I'd also recommend checking out the Walkthrough, which helps you understand choices necessary to lock yourself into specific paths of interest.
Again, I don't know if you were looking for this basic information, just trying to be helpful.