It will be more difficult to get an appointment if an appointment is needed. Don't wait until you're down to your last pill before you call for a prescription refill. The pharmacist may have to get an OK from your doctor, and this can take 24 to 48 hours. Don't go to a hospital emergency room for minor problems. They're not there to judge.
Doctors are also human, and they have their own problems.
There's a good chance they have some of the same problems you have. Remember that your doctor is not a mind-reader. You must tell him or her everything you know, think, and feel about your problem if you want the best diagnosis and treatment plan. Ask questions and more questions. If you cannot understand your doctor's explanations, ask him or her to repeat everything in simpler language.