First, it's a great profession for the right person. That applies to both being a nursing student as well as being a nurse. I finished my BSN in December and just finished my first year as a floor nurse at a large urban hospital. There are a lot of differences between being a student and being a hospital nurse that doesn't get covered in school. While you are a student, you are juggling the coursework, studying for tests and attending clinicals. I found it all-consuming time-wise but very rewarding. You make some good friends and you learn how to manage your time really well.
As for work - 12 hour shifts (day or night) are bone-weary but when you walk out the hospital door you are leaving your work behind. Your time home is spent as you want - family oriented, exercise oriented, hobby oriented. All these were sacrificed while I went to school.
If you really want to work with people, feel a great deal of satisfaction for your efforts and make a difference in other people's lives, can stand the physical abuse your body will take, love to be challenged - then continue on and become a nurse. Good luck!