I don't know how to be bored constructively. Since the predominant mood of my life at this point is boredom, this presents a problem. When I'm bored, I don't read, don't write, don't draw, don't paint, don't exercise, don't work, don't go outside. Rather, I'll sit around, listen to music, play some air drums, a little air guitar. This is hardly a life.
Occasionally, I'll browse around
Wikipedia. More times than would seem beneficial, I'll look up the entry on "boredom." It, of course, is boring.
Really, what I'm feeling is closer to Baudelaire's ennui than anything else.
When you enter "ennui" into Wikipedia, it redirects you to "boredom."
For God's sake, somebody stick a fork in my shoulder or something.