Hi, shining_star28463!
Don't be intimidated just because you have had no background at all in healthcare. There are plenty of us that went to nursing school without any background at all. It shouldn't make a difference. Being a CNA is only a very teensy part of being an RN. By the time your first semester is over you will all be caught up and in the same boat, I guarantee you.
I don't know what to advise you about your stetoscope except to practice using it. If you have willing friends or pets I'm sure they will let you listen to their hearts and bowel sounds for practice.
http://go.dbcc.edu/hhps/nursing/Study_skills.html - Study Skills for the Nursing Student from Daytona Beach Community College Nursing Department with some good advice.
http://go.dbcc.edu/hhps/nursing/Test_Taking_Skills.html - Test Taking Skills also from Daytona Beach Community College Nursing Department. A couple of sample questions and how to chose the correct answer for these application type questions.
Here is another thread on allnurses about studying and nursing school
http://allnurses.com/forums/f198/stu...ded-98560.html - Study skills and study tips needed
Here is a link to a page of nursing procedures learned by the nursing students at Lane Community College nursing program to give you an idea of what might be in store for you.
http://teach.lanecc.edu/nursingskills/
These are links to older threads on allnurses about what is taught in med/surg classes to give you more ideas of what you will be learning:
http://allnurses.com/forums/f205/med...lp-119956.html - Med/surg help
http://allnurses.com/forums/f205/adv...-a-133555.html - Advice on Med-Surg I
Welcome to allnurses!