I am so SORRY!!

I know you guys felt disappointed at me...

I didn't do well in my presentation so we get the lowest mark in our class...

I can't do anything to amend my mistake, i just can apologize to my group member...

I felt deeply guilty because I didn't prepare well for the presentation...

I am not enough qualified to take this subject...

I am not PRO enough in this subject...

not much to say, i just can say:

I AM SO SORRY!!

although i know that sorry no cure...