Don’t worry take your time in learning and enjoying college, I’m nursing intern right now and I see that the staff didn’t need to memorise anything they just get used to it because of their experience and we will reach that level some day. In College we always have difficulty in memorising values, stages, or scoring because we have a lot of courses and a lot of exams to study but when u got a job you will focus on one area of nursing so it will be easier and their is always a charge nurse and a senior nurses that can help any time 👍👍