I was tired when I prepare my Chinese chracter test.= I was tired when I prepared my Chinese character test.
So I was studying hard.= So I studied hard.
It was very hard time.= I had a hard time.
So result was great!= So, the result was great!
It was the grand prize.
So it was happy.= So it was a happy moment.
But effort was so many.= But I had so much effort.
So I was little waste of efforts.=So, I wasted a little effort.
But it's okay.

I have another in winnter vacation.=I have another in winter vacation.