How does this sound? (really short, won't take long!)?

So this is a few paragraphs from a story i'm writing. Because i wrote it i can't tell if it's good or bad or what. I would love your opinions, good or bad (especially bad, then i can improve it).

I'm worried I put too much detail in - be honest, if the whole book was written like this would you get bored with the detail?

“Close your eyes, Kass. Relax. I want you to think back to last year, relive the moment when the car crashed three years ago. Focus.”

Focus? That was a joke. How could anybody focus in this room, in this situation? My entire body was tense with a desire to fidget, to get up and move, to run away. Every nerve in my body was alert: the smell of disinfectant burnt my nose, the hoarse crackle of the psychiatrist's breath echoed through my mind, the fabric surface of the couch rubbed against my skin as though I was lying on sandpaper.

I turned my head to the side and sneaked a peek at the clock mounted on the wall. The clock hands were motionless; the batteries must have gone flat since I was last here. Time itself had stopped just to spite me. Maybe I would be forever trapped in this moment. I couldn't contain my groan at this thought. In my peripheral vision I saw the psychiatrist straighten her back, barely able to contain her excitement at having received a reaction from me.

“Well done, Kass. You're doing great. Keep that moment in your mind.”