First, you're too young and ignorant to be on a cycle. You shouldn't have ever started before you had and knew everything you needed which you clearly do not.
But, since you've already started and you're 18 which I don't think is underage in Turkey, here's the answer to your question: Boldenone shouldn't aromatise (supposedly, this is debatable) but testosterone and specially dianabol do big time which means that yes, you do need an AI like Arimidex or Aromasin. If you already had some gyno from the start you would have been smarter waiting till you're older and wiser and getting that surgery because it can get pretty ugly, pretty fast.