New RN at SNF

Need help. I was trained for 9 days on the long term care floor then 3 days on the acute care floor. On the acute care floor documentation and pts are completely different. And I only had the pts in one hallway for two days. Went in last night as my first night off of orientation. Was on the acute care floor but different hallway. It was like I knew nothing 😓. There was only one other rn. When there are only 2 rns you divide the three hallways. I had 27 acute care pts and only knew 4 from the night before. Everyone (other rn, cna's, and pts were frustrated with me because I was slow and did not know everything). I msg the mgr per protocol for ot and explained why, she never msgd back. I passed all meds but ended up clocking out 17 mins late. I did no charting 😒. Is this normal for a new rn to snf? I was overwhelmed and feel like an absolute idiot. I told the mgr prior to my shift that I was worried because it was my first night off of orientation and did not know everything.....