The classes are hard, but they aren't that hard. The hard thing is that it is so time-consuming. You have class, you have lab, you have lab tests, you have clinicals. And you have papers to write, care plans to do, stupid homework and lab prep. Not to mention hundreds of pages of new material - up to 250 a week - that you have to study. It all takes a lot of time.
Get a prn job as an aide. It will help tremedously in school and will also let you be sure that nursing is where you want to be.
It is a very rewarding job if you can be happy knowing you helped. It isn't the hippy-dippy, Pollyanna job that lots of people think it will be going in. PLENTY of the patients are flippin sick. They're in pain. They're dying. They're unconscious. Their families are fighting and confused. Lots of new nurses start out thinking they'll help people and make them happy...only the people aren't happy. They're still miserable. And all you can do is try to make them less miserable (which, IMO, is very worthwhile work.)
It is hard work physically (my back is starting to pay me back for all those years that I ignored it) and mentally. I remember talking to people - friends and relatives - in nursing school and when I started working and hearing people say, "I could never do that. I'd just break down in tears," or "Stop! It's too horrible. I can't hear it any more!" We lost a few students who couldn't take it, too. Not everyone can stick their hands into infection and feel a squishy dead baby and listen to people cry and be spit on by drug addicts and say, "Yup. This is what I want to do for the rest of my life!" Those were the highlights of my nursing student career.
And if your teacher tells you it is "unprofessional" to cry over a squishy dead baby, tell her to go to hell for me. Sometimes you cry. Sometimes you cry when you didn't even feel particularly close to a patient. Sometimes someone you really, really liked dies and you don't shed a tear. It's all "professional." You just never know how things are gonna hit you. But you're a person and sometimes people cry.
I've been helping a friend who teaches and has just begun an NCLEX prep class. So, I'm kinda hip on students and NCLEXing.
Get yourself a book on pharmacology. You'll be way ahead of the game. And pay attention (learn ALL YOU CAN) in Anatomy & Physiology.
The best care plan books are the Delmar ones. They aren't the cheapest, but they are the best.
If you ever need help, let me know.
But do it. If you want to spend lots of hours helping people, easing misery and helping to end suffering, nursing is the place to be. There isn't a job I'd be prouder to do. If you make it your life's work, you'll be glad you did.