First time to Cambodia Looking for crazy fun

[frequent]

I don't plan on leaving my hotel too much due to my planned activities, or if I go to another person's hotel.

Are you sure you want to spend 3 weeks, only in Sihanoukville ? I spent 6 days there & was ready to move onto Pattaya once that was done.
For that length of trip, you can visit 3~4 places, without feeling like you are constantly traveling. e.g. Bangkok, Siem Reap, Pattaya

Apparently all he wants is to sit in his hotel room, take drugs and fuck guys