I understand that is your first game, but is a completely garbage of PSX/PS1 Game. Even Puppet Combo or 616 Games in his first games they did a better work than you.
The unnecessary labyrinth, grass, trees and the invisible walls or when the player read a letter the game can't be paused. For example: In the minute 17:16 GENuINE993 found a letter, but seconds later she is chasing him again.
And that makes the game worst than it was. Or you play the Puppet Combo or the games of 616 Games and take inspiration from it. If not, then the next time refrain to do games like this.