When I think about an answer to this question I find myself thinking, "This is a hard one. I don't think I really look like any actor."
Then I realize that, maybe, they don't have to look exactly like me, but just have to be able to carry the type of "look" that I do...
That brings a couple actors to mind for me. Which I could see best playing me would really depend on the sort of movie being made.
If it was a raw, gritty, and realistic portrayal of my life, I think
Sam Rockwell would be able to portray myself and my actual persona well.
On the other hand, if they decided to go very Hollywood with it,
James Franco, I believe, would be able to bring my character to life on the big screen.
Of course, this is all hypothetically assuming my life were already over and the movie were to be made today. By the time I actually die, these actors will be old men and no longer very suitable for the part...
As for the track behind the end credits, I would definitely have to go with "Californication" by The Red Hot Chili Peppers. Not that the lyrics of the song have any significance to my life or anything; I just think the tune would be a very fitting way to end a movie about my life...
(By the way, thank you for asking this question of me. It was a very fun one to answer.)