advice please. I'm in labor

I'm only 25 weeks so they're making me lay back with my legs evaluated to keep the pressure of my sac. I'm already dilated 3 centimeters. My back hurts SO BAD. I've taken plenty of Tylenol & they've given me sleeping pills but nothing's working. Is there anything you can think of to stop my back from hurting? I wanna sit up so bad but they won't let me 😢. I just want this pain to go away. I'm trying to hang on but I can't. I wanna go home. I'm so uncomfortable. Nothing's helping.