I am a teacher.  To be exact, a chemistry teacher.  I had been learning English for a very long time now.  There are many reasons that my level of English is still poor.  One reason for me to be here.  I'm a history buff.  I can tell you many wonderful ancient Chinese stories.  I hope you can too share with me some great stories from your country too.

introducing myself

i am a teacher.a chemistry teacher.i was learning english long time.for many reasons ,my english is still so bad.so i come here to make some friends.
just like what i said,i am a teacher.i can speak good mandarin1.and it is important something that i am interesting with history.so i will tell you some fany ancient story.absorlutly,i hope you tell me some good europe history2 story too.
that s all.

1.  You are from China.  It is assumed that you speak Mandarin.

2.  The way it is written, you are implying that you are only interested in making friends with Europeans.  I hope that's not the case.  Not all Europeans speak English!  And there are Chinese who speak and write better English than Americans and the British.

introducing myself

i am a teacher.a chemistry teacher.i was have been learning english for a long time.for many reasons ,my english is still so bad.so i come here to make some friends.
just like what i said,i am a teacher.i can speak good mandarin.and it is important something that i am interested in ing with history.so i will tell you some fany ancient story.absorlutly,i hope you tell me some good europe history story too.
that s all.

My Introduction. (You can also say "my intro")

I am a chemistry teacher. I have been learning English for a long time. There are many reasons for me to learn English. I needed to improve my English so I came here to make friends. Just like what i said, I am a teacher and I can speak good Mandarin. I am very interested in history and I can share some good stories from ancient history. I absolutely hope that you can share some European history with me too. That is all.