How much of a chance is there for me being a psychopath?

ok so i have been pondering this question since my sister started believing i am a psychopath.
i usally never feel a connection to anybody and i have never cried for someone. does that mean i have a lack of empathy? i usally only feel bad when it revolves around me.

i joked about cancer in front of my father when his father died of cancer when i was twelve. i got slapped. when i was 9 i put glue on my caretakers eye and she needed to get to the hospital. when i was a kid i always was sent to the library cause of my behaviour. i didnt feel bad for this behavoirs. when i was slapped i was confused. why would he slap me, but now i understand.

i know this is stupid, but can somebody confirm this or not. i dont know much about psychopaths but i wrote things about me that i think is very psychopathic.