Doctor (career) Frustrations

When I have my Sim go to work, I have her try to see and treat two patients. I also have her try to admit as many patients as she can. If some patients leave, tough noogies! I always answer the house calls, assist collapsed sims, deliver babies, etc. My sim never has time to eat or use the bathroom, so I use cheats to fix it. Getting a diagnosis for Adults are sometimes easy since after I examine them, I X-ray them, and have them use the treadmill. After that, there sometimes is the Guaranteed Diagnosis. However, sometimes you don't get one and you have to guess and you get penalized if you make the wrong guess (this sometimes happens with children as well). I believe that the Doctor career is the hardest career they have since no one helps!