So, yeah, I'm not a shrink, but most of the things you describe sound like they were lifted straight from:
Antisocial personality disorder - Wikipedia, the free encyclopedia
Of course, just like a lot of psychiatric problems, many, many people could look at this list and say "Oh, that's me!" ('promiscuity' for instance). So, if you really want to know, check it out with a shrink. Unless you convince him that you're about to go on a raping/killing spree, or tell him about crimes you've committed (save those for your priest), you'll be fine. The killing animals thing you'd probably get a pass for, as it sounds like you did it as a minor.
Consider it a challenge...it sounds like you aren't interested in getting help from a shrink, just a diagnosis. That should be easy enough if you're as good at manipulating people as you think you are.
What will you if you go to a shrink and he says "Yep, you're a sociopath."?