I am truly sorry for your bad experience.
Take a deep breath, and as one other poster stated: Dust your self off.
Eight patients is an unsafe ratio. You don't want to work at that hospital. And your orientation wasn't long enough, anyway.
Forget that you ever worked that job, and start your job search
again. Once you do, ask in an interview what the ratio is, how potential problems during orientation are addressed, etc.
And above all, never, never listen to some fool who tells you, you will never make it in a hospital, and to work LTC. Do LTC nurses not need critical thinking skills? I think they do. I think all nurses need critical thinking skills. But as another poster posted point, you can learn it on the job.
It seems as though your old employer was short-staffed and needed the pieces of pasta to stick to the wall ASAP. You were the piece of pasta that just wasn't sticking fast enough.
Forget it, and move on!