i wounder where my life is going.
The graphic treatment is indeed gritty and very appropriate in light of the quote from your post. But is employing a rather simple formal treatment enough to convey the essence of this existential question?
A symbolic meaning of the road is clear, but what about other elements of your photo? Once you decide on a message in your image, you should reinforce it with more than one element, or at least, not let other elements interfere with your message. The telegraph pole on the horizon makes my thoughts jump away from the symbolism of uncertain future in life and towards purely visual distraction.