I've got some doubts about the core game concept. Much of it is based on real time (XP gain, energy regeneration, etc.) but the game does not happen in real time.
That's a dissonance that needs to be resolved for everything to work out. Right now, things are awkward and there's a lot of "gaming the system" in there (e.g. wait an hour with your response until you've got enough energy again, etc.)
