I need to talk to someone ASAP!?

My life is going pretty crazy right now and i need someone to talk to about it but i dont want to talk to my mom or dad because if i tell them they would get mad at me and i cant tell my friends because they just wouldnt understand, I just need some advice and i have to tell someone that i dont know something that i cant hold inside me anymore, someone please help?? and ive tried childline.org but im not in the UK i need a website for the USA, please someone help me, i might go crazy if i cant tell someone