I just finished my first semester of an ADN program. For me the most difficult part is time management. Some of the material is difficult, but you can always rely on instructors or fellow classmates for help with things you do not understand. It is very difficult to stay organized throughout the semester when you have papers to write, care plans, quizzes, exams and reading hundreds of pages from the textbook every week. You just have to have a good support system and surround yourself with people that motivate you. Good luck and have a great semester.