I am not sure which med school you are. NWZ the first thing to build confidence is capacitating your self (knowledge). But if you are fearing while you are knowledgeable, next is to increase you contact time with you peers and your mentor (preceptor). And you can do this by engaging more in bedside presentations, seminars and other talk sessions both in person and online like havig webinars with your friends which , concomitantly, will improve your knowledge and speaking skills. Discussing this issue with your teachers will help you a lot. Finally remind to GOD with your prayers. If you are in Black Lion inbox me. Wish you your wishes!