It gets easier with time and knowledge. You will be able to handle 6 patients...look how many RN's do! Seven is getting heavy, but when things are shorthanded this occasionally happens. Eight is crazy, esp as a new RN and I would refuse an eighth pt as unsafe nursing practice.
Be humble, ask established RN's how they organize their time and for any other suggestions they have.
Best wishes on finally getting out of orientation...didn't care much for that part either.