You can usually expect to go to school at least 3 years to become an RN. For the Associate Degree of Nursing program you'll have one year or more of prerequisites, like English, Math, and Science, and two years of nursing clinicals. The Bachelors route takes 4 years. Expect to do A LOT of studying! The courses are very intense and you should not fall behind. But once you get acclimated to the program you may even begin to enjoy it. Some of the experiments and procedures you will learn can be fun. Just don't let yourself get too stressed out with any setbacks you face, and you'll do just fine.