你好， Li Jinmeng,

The first correction is good. Just one further change I would make:

The atmosphere around me is not condusive to learning English. I can't find someone who is willing to communicate with me in English.

As fdmaxey said, your basics are very solid. Don't get discouraged :)

First notebook entry: Introducing myself

My name is Li Jinmeng . I'm a collage student. And i,m and a freshman. I'm going to Canada, so I want to improve my English ability. There are is not an astmosphere learning English arround me. I can't find someone who is willing to communicate with me in English. A native speaker is important for me now. Can you help me?

[Your basics are good.  Use an apostrophe (') for contractions instead of a comma (,).  Capitalize I (我）]