How to handle a patient

Today's pt. was really hard to handle. Sometimes I think pt.'s need to remember we are in a learning facility. My pt. today was really short with me. She was very on edge with all the waiting and the instructor checks and the OHI and the fact I didn't get finished. During OHI she had cut me off because she just wanted her teeth cleaned. It is hard to do what the pt. wants or do what you need to do to get the grade and what is asked of you.I'm working the fastest I can, I guess I need to just get better. I did reschedule my pt. and I hope she returns to let me finish.