Graduate panic is very common, but can be eased witha serious heart to heart. When my students mention to me they are apprehensive about entering the feild, i remind them of how they were when they first started school, how nervous they were, and how they overcame that and made it through. i tell them that they are more than capable and they will do fine. i also offer my services as far and mentoring if they come across any problems, questions or complaints. that usually eases that fear.