First off, your story is amazing! very descriptive and just amazing
Anyhow! I have a few ideas aka requests for torture methods.
1. Use the one from the movie are you scared and have him go into a pitch black room and every once in a while, an EXTREMELY bright lights flashes for a bit and then it goes black again..
2. The chinese water torture... where they drip cold water on his forehead for a reaaalllyyy long time
3. And of course the worst torture method of all... anticipation and isolation
Lol I'm probably gonna grow up to be a serial killer.... oh well!