What happened today? The time was up

Today i went to the university to present an exposition about my career but the teacher was late so i have to wait from 6:00 pm to 9:00 pm until the teacher came to the institution and when my turn for the exposition came the time was up so I have to go to the university next friday, with my business suit again. But i hope get an A in my exposition. The good thing: i have one more day to study the information.

Today I went to the university to give a talk about my career, but the teacher was late.  I had to wait from 6:00 pm to 9:00 pm when the teacher arrived at the school, but when my turn to talk arrived, it was too late.  Now I have to go to the university again next Friday, wearing my business suit.  I hope I get an A on my talk.  The good thing is that I have one more day to study the information.  

Shorter sentences are easier to read and to write. 

     <em>This evening</em> <em>I</em> went to <em>school</em> to <em>do my career presentation.</em> <em>My</em> teacher was <em>three hours late, and did not arrive until nine o'clock.</em> When <em>it was </em>my turn <em>to present, time ran out, </em>so <em>now </em>I have to <em>return</em> next Friday <em>in</em> my business suit again.

<em>     I</em> hope <em>to earn</em> an "A" <em>for my presentation, and on the bright side: I do</em> have one more day to study the information. 

<em>Problemitas con la estructura de la oración, pero bueno. He añadido un poco de expresión idiomática para ti: "On the bright side." </em>