Well....
To everyone who said get over it, or joked about it trivially , while i can understand that maybe it was attempted humor, it's just not really the thing to say.
Heartache, TRUE heartache, knows no limitations.
If you were very deeply involved emotionally, it might be a lifetime wound.
I know several people who after years have not gotten over losing the one they loved, and there is nothing that anyone can do.
The best advice that has been given, is to go see a professional therapist.
16 months is a long time to be mourning, and a professional is by far the best person to make a determination of how you are doing emotionally.
The very act of talking about the story of ones life, in this case, the divorce, and the emotions you still have, and the way you feel about things....is in itself, therapeutic.
The act of talking about it and getting it off your chest, will make you feel better.
At the very least, you should give it a try, and see if it helps you out.
While the choice to go drown your sorrow with other things, such as women, alcohol, etc etc might be a good filler for someone that really didn't give a crap, it is not the solution and will most likely not do anything for the emptiness that you must truly feel if it's been 16 months.
If you do decide to possibly go find a therapist, i advise you to approach it with an open mind.
Good luck