W-Year and end party

In last Thursday, I had two year and end party.
Year and end party means "Bounennkai " in Japanese.
And I became a organizer in two year and end party.
So, I must have gone them.
I was very busy day.
In addtion, I must have waken up at seven.
I was worried about it.
But, I enjoyed myself in W party.
And I drunk too much.
So, I hardly slept.
But, I really enjoyed.
I don't regret.
I am careful about oversleeping.