I second everything everyone above said. The "real world" of nursing is light years different than nursing school, which is composed of a lot of scut work and theory. The fact that you are questioning things and not wondering what your fellow students find so exciting about this basic (but necessary) step in your learning process tells me that you are alreading becoming skilled at critical thinking. Critical thinking skills are what today's nursing is REALLY all about.
NO ONE feels skilled enough to "go out there" and really put into practice what you have learned, even upon graduation, but guess what? We have ALL been there. You will not be left on your own to fly by the seat of your pants, and the RNs who teach you will show you that everything--in fact, very FEW things--are done by the book, or as you learned in nursing school. Relax and enjoy the nursing school experience.
Here's a funny story about my friend Al, the only guy in our nursing school class. He always volunteered to do what he thought was the "fun stuff," like (in HIS mind, NOT ours!) trach suctioning, NG insertions, colostomy care, "shots"...He was going to work med surg, and wanted to be REALLY good at those skills upon graduation. The rest of us let him do them ALL.
Flash forward 3 months later--I am working in the OR (where, thank God, I will never have to insert an NG, or do trach suctioning or colostomy care. In over 20 years, I have only given maybe, 10 IM injections! I'm a master at IV starts, though!)
I call my friend Al, on the med-surg floor, and say, "How's it going? Do you like your job?"
Al: "Oh, yeah!! We get to do all kinds of cool stuff, like trach care, etc."
I tell a seasoned OR nurse about it. She says, "Yeah, just ask him the same question in a year, after he has suctioned the nasty trachs of a few hundred old gomers." I am shocked and offended at this response, but keep it to myself.
1 year later, I am still in the OR. I call my friend Al on med surg, above us. "How's it going? Do you still like your job?"
Al: "Man, all we do is gross, disgusting stuff like trach suctioning, colostomy care and NGs and tube feedings. You are so lucky. I wish we could give all our meds IV push, like you guys do. I'm always behind. I never get a break. I wish I could get the he** outa med-surg."
So much for the "fun" stuff learned in nursing school!