At move 14 I played Qa4 after thinking long. That was a typical position I had no idea what to do. I was not too happy with the move. But I couldn't find a suitable plan for the position.
Yesterday I played for the first time the Polar Bear with white in a rated game against serious competition. It took me a month or two before I felt confident enough to dare this, but now the bear is loose. You can find the game here. It's obvious this style of play suits me well. I'm sold.