Finishing a patient

Today I finished my first patient. It took me 2hours to do a full mouth scale on a class 1B!!! 2hours!!! They say I should be doing it in 45 min right now. I just want to keep the patients coming so that I can get better. It's hard to get a lot of practice when you just see two patients per week. I know it'll get better, but I just feel so incompetent and slow right now. Better luck next time.