kinda i lost my heart i lost the feeling of true love nothing can hurt me nomore
Not everyone ends up mistreated in their life. And even if you do, why would you want to just exist? Because without joy and sorrow, without love and laughter and anger and all of our emotions, it isn't living, it's just existing.
Channel your emotions into something; make negatives become positive. Like, if you write, write angry poems or write a story about a pissed off revenge seeking character. Or go to the gym, work off that anger with sweat. Lots of ways to turn 'fed up' into something good.