My wife went thru and extremely hard RN program. She would say that you have to really want it. Basically once you've started the program you have to spend most of your time studying and practicing skills. Instructors can be very picky.
Anything is hard if you go into it expecting it. If you really want to be a nurse, you'll open up to learning and want to know more. It's a setup for yourself to look at it from another viewpoint ... "I can do it, it's easy". Go for it !!