I am correcting your second note

Some days later...

I had my first session this week and now understand a bit about my knowledge of English.
The human brain is one of the greatest things in the world, it helps you to do something that you think are not able to do. When I speak in English with Russian speakers I see that my vocabulary is poor, but when I spoke with to a person who doesn't understand Russian, I saw realised that I'm able to speak and listen in English. Because I don't have any opportunity for can't speaking Russian with my speaking partner, and I have only one way to bring my words to her: I need to say the words in English!

[To correct]: Some days later...

I had my first session this week and understood a bit about my knowledge.
Human brain is one of the greatest things in the world. It helps you to do something that you think are not able to do. When I speak in English with Russian speakers I see that my vocabulary is poor, but when I spoke with a person who don't understand Russian I saw that I'm able to speak and listen English. Because I don't have any opportunity for speaking Russian with my speaking partner and I have only one way to bring my words to her: I need to say that words in English!