What is the point of stressing yourself. Work on your strengths and limitations by first identifying.  Look what skills are required to face the MBA placement process. Not sure if you are looking for placement or if you are working for a placement division. You were vague. Whatever may be the case, you do it if you systematically work on the challenges. Seek help of a Counsellor to handle your emotions that might be a block/hurdle to your professional achievement