Miss Bella has done a great job of correcting your entry, so I thought I'd just comment with an alternative way to write your paragraph:

My native language is Russian and I'm having trouble learning to speak in English.
I started to study the English language almost a year ago, but I'm lazy and I don't like grammar. I love to read, however. Sometimes I don't go anywhere - I just lie in bed and focus on what I'm reading :)
I'm a Philology student at university. My mother tongue isn't Russian, but I use it as my first language in everyday life, so I'd be happy to help you study Russian and become a friend.

:)

I know Russain very well,>space<but I can't start to speak in English...

I have learned English almost one years ago,>space<but I'm very lazy person.>space<I don't like grammer>space<but I love to read.>space<Sometimes I don't go anywhere and just lay in my bed and read very deeply:)
Also, I'm a student of Philology at my university. My basic everyday language is Russian.>space<It's my second tongue language but I know Russian like my first language one.>space<So, I can help you to study Russian and be your friend....


Reading English books is a great way to learn grammar!
You will commonly hear people refer to their first language as their "mother-tongue" but not their second language as their second tongue. Great entry. 

how you wrote it?)