Am I?

I am heroic couplets; most precise And fond of order. Planned and structured. Nice. I know, of course, just what I want; I know, As well, what I will do to make it so. This doesn't mean that I attempt to shun Excitement, entertainment, pleasure, fun; But they must keep their place, like all the rest; They might be good, but ordered life is best. What Poetry Form Are You?

(If you were not Heroic Couplets you would be a Triolet.)