Where's my orientation? (Whiney vent)

I am a fairly new nurse, graduated in May, licensed in September. Since I was a GPN I have been working at one facility with tons of back up support. I received a six week orientation which was sufficient, and I still was not really on my own because I was unlicensed personnel.

I was recently hired as a part time nurse at the facility of my choice. During the interview with the NM I specifically told her my concerns about being a new nurse and getting adequate orientation. She was very understanding and promised I would get the amount of orientation I needed to feel comfortable. Or nearly comfortable.

Long story short, I started work last week and got two days orientation. I was scheduled for tonight but was told that I would get two more days orientation this week so I would actually be working my two off days like I did last week. When I called to verify that I wasn't on the schedule (I am responsible and wouldn't NOT show up) I find out that I am on the schedule for tonight. Alone. Last week I did the floor my second day, my first day was spent shadowing. It was painfully obvious at 7AM that I needed one or two more days to get my job down. My preceptor told me not to feel bad, that she would need another day herself, that two days really isn't sufficient. I know she called the NM to arrange the days so I don't know how I got into this dilemma. I feel uncomfortable, and now I feel even worse because my mom who is also a nurse is saying that I am being a spoiled brat about this. However, this is my license and there is vital paperwork that needs to be done and I am not sure how to do it. I don't know the residents, and what the MAR says (their preferences, etc.) is not really accurate. I know I will get through this but I feel so alone and kinda betrayed. Where is my orientation?????? Is this a natural occurance in LTC?