I can definitely relate. I hate this, I find it one of the most frustrating parts of the illness (although I'm mainly diagnosed MDD with Psychotic Fx) - the inability to organise thoughts and engage in meaningful conversations and dialogue with people. It makes me feel so frustrated and isolated. I agree with others though that you should speak to your Doc about medications. I've personally found with this symptom in particular, no amount of therapy based techniques has helped with it, but finding the right med and dosage usually clears it up fairly promptly.