You're just not used to it yet, 6pat, keep using it and it will have soon become your primary form of expression for certain topics. Finish acquainting yourself with the theory, if you haven't yet, and then talk, write, listen, read, surround yourself with the English language and you won't even notice when you start thinking interchangeably in English or in Russian, based on which one's easier to use at that moment. I can tell you from experience, some things are way easier to talk about in this international language than in your native tongue, it creates the kind of separation we seem to need in the east. And while on the topic of us easterners and English, please try your best not to care about "mistakes" and such, hardly anyone does and it is normal, even for natives, to make them. If you think like that, it makes it way harder to convince your mind that English is a language it can use, just like Russian, and not some kind of weird test, where every word you say is being judged. Fight on!