I once gave a 1x dose of ativan for a patient that the neurosurgeon wanted to watch his EEG on. The doc told me he was ordering it and for what so once it came up to pull I did so and pushed it, then told the doc. Was the doc ready to go? Heck to the no. The day was crazy and I was trying my best to stay afloat. I had been a nurse for 3 years when this happened.
A nurse I used to work with guy a patient from PACU who was in a lot of pain when they got to the floor so she gave the ordered prn pain med. She failed to look at the mar to see when it was given last, and it was to soon. She had been a nurse for over 10 years.
I went to a new hospital and learning the charting was horrible for me. This system was awful, and I still stand by that. I missed a whole rotation of antibiotics, new orders and lab results. I swear being experienced was a disadvantage, it was horrible. I now charge on that same unit.
Book smarts is wonderful until it's not. You are learning to draw connections between what you learned in school and how it applies to your patient population. A+B=C or D or Y and YLMK, school teachers you A+B=C and the rest comes with time and practice.
If you can go in early and read over your patients info, get labs and imaging results, write meds and times down, and your orders for the day, then use this to get you a game plan down. Cluster your care when possible, and ask questions. I used to write down different diagnosis and meds used and studied them, then when I would get a patient with said dx I would have an idea of what to expect. Get you a brain, one that works for you so even through the chaotic times you have a reference of what is due and when. Get organized.
Have you thought about nights? Nights has it's own set of advantages and disadvantages but generally the pace isn't so fast like days, you usually don't have many admits or discharges. This could help you feel more comfortable in your work environment and you critical thinking.
You sound like you are someone that is willing to learn, accept when mistakes are made to learn and grow from. Don't give up yet, you're still new.