Generic Hints
1. "Just because you interact with something once, doesn't mean that's "it." Some items require multiple taps, some items can be interacted with via multiple items, and some items can even change on their own over time!
2. The magnifying glass can unlock clues or a deeper understanding of your environment.
3. Not everything in your inventory will disappear after use, but that doesn't necessarily mean such things continue to be vital for solving additional puzzles.
4. In the event you break the game, I apologize!! (It's hard for someone who isn't a programmer to make this thing from scratch basically just using binary systems [mostly show/hide] and image layering!!). You can restart the game by reloading the page, but you will start over from the beginning. ;'(