(Thanks for the feedback! I'm glad you're enjoying it so far!)
(As for the locker hook puzzle, rubbing alcohol should have removed the hook, but I'm guessing you haven't clicked on a hint that would have allowed you to use it. This was an attempt on my part to combat meta gaming, but it was a poor decision looking back. The good news is this is the only part of the game that has this issue, as it's a holdover from when I first started making puzzles. Try checking the poster in the janitor's closet.)
(Regardless, I hope you enjoy the rest of the game. Thank you for playing!)