The words of thanks

I want to tell the words of thanks(not really a common phrase,if at all, in English. Something you're more likely to hear would be "I would like to express my gratitude" or simply "I would like to say thank you") to the people which who helped me learn English.

From my side I will am ready to help other people learn Russian.

And now, I want to tell your several words things (more common phrasing and fits the context better) about my work. I am have been working (This might seem stange since you are still currently employed here, but think of it as a reminisce rather than as past tense. English has some weird quirks) as director of sales in a stationary company for almost three years. Before this, I even didn`t didn't even (this flows better) know that in the world has had (here's that weird quirk again) so many kinds of stationary. Else I had known that many a lot of stationary is make made in Chaina China and many a lot of paper (very good quality) is make made in Portugal.

Your English is very good! The majority of your writing is clear, with only a few mistakes. These grammatical and structural mistakes are very common as English has a lot of strange quirks that differ from other languages. These quirks will take some time to master, but with hard work and practice it is achievable. Keep up the good work and good luck with your English studies!