One of the first things that caught my eye was you said your father is a psychopath but later you referred to him as a sociopath. There is a difference between the two, so has your father been evaluated for either of them? Sociopathy can be a mix of mental illnesses, so there is no clear formal symptom list. This begs the question, what are the list of symptoms you are using to self-diagnose?

I'm curious how you described the way you "tested" your friend. His reaction does not necessarily mean he has sympathy toward you. For example, pretending he is a sociopath, if he has you with him, then potentially more can be accomplished. On the other hand, you mentioned you "test" people by pretending to be sad and desperate to eventually exploit them. This is unusual though because you refused to exploit your friend for no other reason than compassion. Since you said you feel powerful when someone falls for your lies, what do you feel when someone does not fall for your lies? Do you feel the opposite, weak, sad, vulnerable, etc...? This also leads to another important question, are you testing the people here on these forums to see how sympathetic they will be?