Writing prompt: My Dream

Student essay:
Dear friends
I am very happy to speak here to you .
My dream is to be a teachr . but many people would be surprise,they think teacher is very hard and the pay is poor. but I have own idea about it. I have had a dream to become a school teacher when I was a child . I think teacher's job is very important and necessary for social and economic development. I like to paly with students. they can make me feel young. and I don't thing teach students is waste of time .but .I think it's a valuable job.
That is all I have to say .thank you

Corrected essay:
Dear friends,
I am very happy to speak here to you.
My dream is to be a teacher, but many people would be surprised. They think being a teacher is very hard and the pay is poor. But I have my own idea about it. I have had a dream to become a school teacher since I was a child. I think a teacher's job is very important and necessary for social and economic development. I like to play with students and they can make me feel young. And I don't think teaching students is a waste of time. I think it's a valuable job.
That is all I have to say. Thank you.