Who am I?

Am I not who I thought I've always been? Who am I anyway? All my life I've prided myself on being a thoughtful, caring person who fights for most causes,, especially if it includes poverty stricken, children, hungry or homeless people. I especially HATE to see people make fun of those who are different... gays, fat people or those with mental illnesses. Has all my life been a lie? Who am I? Who the hell am I anyway? I don't think I can do this. Everyone tells me this is the best thing to do.... that I must do it for my own sanity. I know that's true but it's not me. Not not not not me. I don't think I can do this and yet I can't not do this. I hate this. It's not me. It's not who I am, is it? I would hate to think this is what I've become, cold, heartless and uncaring.