Denial of medicine, grievances and nowhere to turn in Texas

As I write you this letter, I'm sitting in G5 closed custody after standing up to an officer denying me medical and medication. The substitute counsel never helped me nor came back to speak with me. The captain lied and said I refused to attend my hearing. So they ran major court without me. We have cameras here and I can prove they are lying. But who do I contact? I've written the warden, but they ignore my letters and I-60. I never receive a grievance back. The law library is refusing to answer any of my I-60s. The officers have come into my cell and packed my property only to take some of my legal transcripts, returned I-60s, and medications, lay-ins and other personals. They went into my legal manila envelopes and took documents. They threw away my legal envelopes, combined several containers of legals into other folders mixing things up and getting them out of order.

What do I do? Who do I contact? No one on this unit will answer an I-60 concerning the issue. I need your help to start me in the right direction to help myself and my fellow brothers beside me. I don't have any outside sources or family to help.