I've been silent

I've been speechless to myself. My last article was almost one and half a year ago. I found myself harldy writing down anything.
Is it because that I don't have any comment or thinking in my mind?
Is it because that I tend to narrow my life to surrounding and familiar people, things and locations?
Is it because I don't have an interest to instill my enthusiasm?
Or am I too shy to share my feeling in public?
Probably, they all explain part of the truth. Anyway, I am not content with the present me. I can't see any change to me even after I spent 5 months to get experience living abroad.

Life is an attitude.
Improvement of my attitude is needed desperatedly.