hey zhing. i no know how to comfort you about your presentation. just want to tell you. now we all are at the learning stage. we can make mistake but we also can make success. as long as we dont give up then should be ok. i know you maybe blame yourself. but dont do that. we all are worry about you.try dont be upset or depress. it is nothing wrong with you. learn the mistake and do better in future presentation.
what ever happened. still got us ok ^^