On happiness

When it comes to the question “what does happiness mean to you?”, different persons may put forward various answers, some say that happiness is a life entirely free of trouble. While others hold the opinion that happiness is not the absence of problems, but lies in the course to copy with the difficulties. In my opinion, I am strongly in favor of the latter one.
For example, I am weak in spoken English in college, thus in every oral class I am always the silent one, let alone to communicate with my classmates. At that time, how miserable my life is! As time goes on, I gradually realize that I must change it. So I actively take part in English corner. I am not afraid of making mistakes, just in the hope of learning as much as possible from others. In the course of learning, I really get a sense of happiness.

Now I clearly know what happiness is, it is the kind of feelings which we obtain through the course of settling the problem, it is also the sense of achievement which requires us to make great efforts to deal with the trouble. ?