Ok, a few of the bugs are game ruining. Save often. The game does have a tutorial, but it doesn't explain some important stuff.
For example, after a doctor sees a patient, he still has to come back after going to other diagnosis, so you can end up with cues of 30 people, even if you have 20 general consulting rooms. You're better off having 5 really good doctors, who diagnose the patient instantly.
Ghosts are a pain, and often get trapped in walls, and the only way to get rid of them, is to demolish the room, or move it (if you have room.) But doing the first one, gets rid of all your upgrades.
Also, once you get busy, ramp up your prices until you're hated.