The first step is seeing things for what they really are, and putting a realistic perspective on them....
So, go get a bottle of Scotch, two shot glasses, and take a trip to "see" him....
Sit there and talk to him about where you are with this, and how you feel about this, and him. Tell him what was good, and tell him what was bad, and thank him for all that he gave to you.
Everything in life is a lesson...we get to choose what we keep as good, and what we keep as bad.....
From what I have read , there is a lot of him in you..