Self-pity is an icky liquid you swim around in when you blame the world for your problems.
People who wallow in self-pity usually go around in a bad mood, feeling sorry for themseleves, feeling they've been wronged some how. They only care about poor little them. They failed because of someone or something else. They don't own up to their own faults.
Darnell: If the teachers in my school would have payed me more attention and got the big bullies off my back, then I wouldn't have been full of self-pity, dropped out, robbed that store, killed 3 people including a child, and got into a police chase that lasted 4 hours and 23 minutes then became an on-foot pursuit through a backyard in the projects where I was tackled then sentenced to prison where I'm getting my ass slamed for 237 years and cleaning the toilet with a toothbrush for my cellmate named Deshawn who makes me pee sitting down.
Mom: k...Dad says hi.