Thank you all for good words!
"Of course it's strategic, the best strategy is to make sure you're the luckiest player!"
I like you signature!
I think exactly lack of this strategy didn't give me to win the final game
In fact, in finals I didn't make any serious mistakes, almost all fields were mine, I didn't allow to my opponent to close two big cities, but in the middle of the game I was taking only roads, 5 or 6 one by one, meanwhile my opponent was building his cities. At the end I lost with only 12 points difference. But nothing to worry about: this is my first tournament, not so bad result and next year I will try to return the favor