Lyristan

I say i'm a stone wall, but like a desert i crumble. I state that i'm stable, but i always stumble. I say i'm like iron, but under pressure i buckle. I believe that i'm serious, but at me they chuckle. I say that im sugar, but they think i'm sour. I thought i could go on, but my tears fall like a shower. I say that i'm innocent, they find me guilty. I state that im pure, but they find me filthy. I say i'm like the sun, but they say i'm darkness. I thought I was free, but around me they place a harness. I say im in the group, but they give me the blackball. I told them i could fly, but they made me fall....