Where do you hear this website?

Firstly,I say my experience.

I head this website from a famous upload in bilibili that is one of the famous video websites in China.He recommend this website,so I come here.I hope communicate with foreigners.I want to improve my English skill of reading and writing.I also can teach you Chinese.

I am a college student.I will write a composition every week or every other week.Could you help me correct mistakes?