What a terrible teacher he is!!!

When I was in junior hige school, in swimming class, firstly I and my friends swam by following my teacher's instruction. The swimming normally bored us. But The time that teacher go to his room was coming!! We got a chance to dive into the pool because teacher prohibit to dive into pool. I and my friends did slow diving at first time, and the more time we was diving, the more quickly and higer we dived. It's a exciting!! But the enjoy time is not continue... Finally, the teacher got out his room. However, we didn't notice that. Then we dived into pool again. At the moment, the teacher shouted " What do you do!! You are fucking fool!! ". Then he bring us to pool side and hit us. Although the action that we dived into pool is bad thing, I think he shouldn't hit us.

My good and bad point

My good point is positve because I enjoy my life and when I face sad occurrence, I don't care about it. Then I think good thing. For instance, "If I endure this, The good things come to me." I think.
My bad point is many. One is that my concentration is poor. Two is that my opinion isn't to the point. Three is that I have a hot temper. If I say my bad point, there isn't end. So, I must increase my good point and decrease my bad point.

What I'd like to accomplish in university

What I'd like to accomplish is speaking English fluently because if I could speak English, it is cool and useful at international society.
I must speak with foreign people who are from the English area to get the skill.
In addition, I must be positive for speaking English with foreigner and enjoy learning English. But, Life in university is hard than I thought, so I have to try to learn English efficiently.
If I can take the skill to speaking English, I would get a confidence.