I just finished my 2nd semester of nursing. I have med/surg again for the summer. But this fall, I will be in critical care.Did anybody buy extra books or programs for critical care to go along with the required textbook???Any suggestions about how to prepare for that experince. Our class is so nervous about the fall. The instructors also told us whatever your grade is now, it will drop 5-10 points in the fall. Is that true???Did anyone have problems with the critical care???? And what did you do to get through it??