Well... I started thinking about my concern about real oral practice and concluded that I had mislead myself with an assumption that I'd been out of language for so long. I was surprised to find out that the last time I spoke English was during one cultural evening in the beginning of December. Why was I surprised? Because it turns out that you can lose some of your oral language skills even after such a short period of time.
The way languages work is just crazy. You cannot miss a single day without developing your speaking skills even in the language the level of which you regard as 'fluent'.
What was also important that having chosen to write three essays on pragmatics in Russian I didn't expect it would be so much complicated. Why? Yes, my mother-tongue is Russian BUT after graduating from school I haven't written a single official essay in this language. All the essays, exams, theses were taught to be written with appropriate styles, forms, following a number of rules, BUT the language was English. Thus, having submitted my exam questions, I understood that I had no idea of what 'official' Russian is. What made me sad even more was that at times I made very ridiculous mistakes and didn't feel ashamed of it. :)
To conclude, I think in no case this should become an ordinary practice. Thus, in order to keep my written mother tongue at least grammatically correct, I'll have to continue posting to my another blog. In order to get used to proper language and enrich it, I'll go to library and pick a good read. It's better be something classical.
Finally, written language will be developed through direct training of my productive skills and 'richness' is going to be achieved by indeliberate training by using my visual memory.
That's all my language worries at the moment. I hope that the situation will be improved as soon as possible.