That sounds rough. Even when I started a new m/s job at a new hospital (with experience), I only shadowed the first day, trying to get the lay of the land and mostly observe the charting and procedures with calling docs, etc. The next shift, I think I only took 2 or 3 pts and did that for about a week, because I was so slow with the charting system that was so unfamiliar to me. After that, I took a full load, but again, I was not a new grad. I cannot imagine doing so as a new grad.
When I precepted at my last hospital, our new grads got 12 weeks, and the first day, we did shadowing, and the next 2 shifts, I only gave them 1 pt, so that they could do things at their own speed and have time to get used to things and get more familiar with where things are and I also brought them with me to do things with the pts I kept, for learning purposes, but their primary responsibility was their one pt. We moved up from there, at their speed, with most carrying a full load after the first 5-6 weeks, so they got about 6 weeks with a full load and a preceptor.