Absolutely normal to feel that way! I remember my first semester of nursing school I was like, "What? This is nursing? I don't get it!"
I agree with Neo Soldier - you really learn how to "be a nurse" after you pass the NCLEX and get a job and practice nursing for about a year. It all clicks. School is teaching you how to not kill anyone so pay attention and follow directions!
Simulation is a wonderful tool - often it is not run very well but if your school has trained the facilitator or your professor well enough it should be just stressful enough to challenge you, and then the debrief after the sim is a real learning experience. Study up and be prepared for sim, but remember there's no such thing as getting it all correct in sim - that would be a bad sim! Sim is the time to make mistakes, to miss things, to miss clues etc. In the debrief you are reminded what is the standard of care, and you think about and learn how you might approach this scenario differently, or better, in real life. Getting upset over your "performance" in sim is a real waste of an amazing learning tool.
I got to do a 3 day SIM Debriefer Training at NYSIM center - highly recommend it to anyone who lives in NYC. It was a multi-disciplinary training, so we were nurses, pediatric oncologists, unit receptionists, emergency physicians, respiratory therapists, people from all over the healthcare system. The program was so well run by the facilitators (an MD and an RN) and we all learned so much. And it was reassuring to see that MDs missed things in the scenarios, no one is supposed to perform perfectly because that means there is nothing to learn! But the sim is not a trick, it is not trying to trick you, and a well designed scenario unfolds in ways that can really help prepare you for real world nursing. So keep an open mind about sim, and jump in ready to make mistakes and learn. Keep your sense of humor, don't attempt to be perfect.
I am an ER nurse so we do real world focused assessments all day.
For a diabetic I would want to know:
Any symptom/complaints today?
What's the current finger stick?
Which Type, Type 1 or Type 2 diabetes?
Who is your doctor?
What medications do you take?
How often do you check your bs?
How have your bs's been these last 6 months?
How do you feel you are managing your diabetes?
Are you struggling?
What's the hardest thing (for some it's the diet, for others it's the finger sticks, for others the medication regimen, expense, insurance hassles etc.)?
How's your skin? Any wounds? Any wounds not healing well? Especially your feet? Do you always wear good shoes, even slippers in the house?
Any other health problems?
Have you had a vision check up lately?
Any changes in vision?
Any urinary symptoms of concern?
Tell me about your diet?
Etc., etc., etc.
Also remember, always, trying not to kill anyone: even in sim wash your hands (or announce "I am washing my hands" if no real sink exists), and ask/confirm the pt name and DOB!, and take vital signs.
Utilize every minute of nursing school to practice. Becoming a nurse is like learning to play short stop: you have to practice, and then in real life when the ball is coming at you and runners are on 1st and 3rd you'll know exactly how you want to pivot and where to throw that ball!