Very stressed--need opinions!

I would find a different job...
I got only three days of orientation even tough it is my first job as a CNA (it is my first week). Now, I am by myself on the floor but nobody yells at me, other fellows, LPNs, RNs and management ask me how am I doing. Sure, I make mistakes, but they just say it and don't yell at me. Believe me, you can find a better facility to work in...