What does this poem mean?

Well this was quite unexpected... of all the places it turns up it has made its way here. I wrote this. I wrote it awhile ago and posted it several months ago. So far everone has been correct in defining this poem. Each stanza reffered toa slightly different time period on my life. The underlining message I was attempting to convey was of helplessness. I was severly depressed as all of my friends left me just before the start of school. I attempted to talk to them and remedy it but to no success. I felt as I was the only one here on earth. I was terrified of the world ahead of me as I had no one to fall back upon if things somehow got worse than they were at that time. All of the people lied to me repeatedly in telling me how we were such close friends. My entire world came down on me in one collosal movement. Everyone in my life to me, had lied to me, i felt betrayed, cold,, and in darkness. It was with that that my mind wandered, which caused it to harbour hideous thoughts of suicide, or worse. Every ping day I wore chains, dragging myself along, prolonging the day. I felt horrible, yet no one had the adasity to approach me and ask why I was what I was. No one seemed to cared, hence the line "invisible blood" You may or may not believe me when I say I wrote this, but ultimately it doesn't matter, what one tends to believe can be independant from the truth. I know I wrote this. I hope this answered your question and if you are wondering I am no longer like that, but if you are interested I still have a large collection of poems