depressed

i'm just a lonely girl in this big world. on the outside i put on a mask but on the inside i just wanna hide away.  love my crazy accepting friends. i just feel like nobody wants me around no matter how hard i try i always feel like someone is putting me down or saying something they don't like about me. why do i think about suicide? i don't know to be honest. i have a great life but why doesn't it feel like that to me?