well i try to upload the old save but i can't fine the three linne in the to left corner to do it did they move it or got rid of so i have to start fresh witch i don't want to
This game doesn't really have any variables to save except the player's name. In fact, this release added a new screen at the start of the game to let you play from any day you choose. If you had a save right before the afterword, the only thing you miss by starting a new game and picking "start at latest update" is the day transition screen you've seen each night.
I get that people like continuing their saves, but this kinetic novel is one of the most lenient and flexible games in the genre. The only things you would be missing on a fresh install are a save with your name already input, the unlocked pictures and scenes, and the notes in the character bios. And all of the extra stuff will be re-opened once you hit the afterword again.