Questions, bugs, or an ending you think makes no sense? Write to help.will.apps@gmail.com.
I don't feel anything. Check that System Haptics is on (Settings > Sounds & Haptics) and pick "Strong" in the game's settings.
How do I find every ending? Play again. And again. Every choice matters, especially the ones that seem harmless.
Can I reset my progress? Yes: Settings > Reset all endings.