"Hurt" by Christina Aguilera. This song sums me up at the moment. Christina wrote how I feel about mum.
"I've hurt myself by hating you" - couldn't have said it better.
Listen to the song or look up the lyrics on the Net. Contrary to opinion, this song is not about Aguilera's estranged father.
"Because of you" by Kelly Clarkson says some of how I used to feel towards the male parent. Not completely accurate because I'm not an alienator or as messed up as the person she's singing about, but it comes close.