Ok I Get It, I'm Young

Alright, I’m turning 20 and will be 21 soon. My wife is currently 18 but nearly 19. We’ve dabbled in this lifestyle for two years now, but we just bought the CB-3000 from Amazon. This marks my first full day of wear, and I’d like to trouble anyone reading with a handful of (perhaps slightly foolish) questions. Please don’t be offended by my ignorance.

1. Is that slight pinching sensation normal?
2. Has anyone panicked during their first time and tried picking the lock after being left alone for hours?
3. Do Keyholders often leave keys with random people or in odd spots?
4. Can you safely sleep while wearing a CB-3000?
5. Which is considered the best type of lock?
6. How do you manage sitting without hurting your testicles? (Apologies for the slang; I didn’t know another word that sounded less silly.)
7. Is there a specific moment when it absolutely must be removed?
8. Does comfort improve as time goes on?
9. Anyone familiar with a discreet locksmith? (Just kidding XD)

Thanks for reading my questions. I’m sure they’ve been answered countless times and discussed even more often. Thank you for your attention, and especially for any helpful advice. Have a wonderful day.