hi, i've recently been diagnosed with mixed anxiety/depression, and the zoloft
/klonopin combo works for me. i take 2x50mg Zoloft
per day, and 1mg Klonopin. Talk to your doctor, and see what he/she has to say about your case. Generally, SSRIs are tricky. For eg., I tried Mirtazipine, Citalopram, Effexor before I found that Zoloft suits me!
Best of luck. Oh, and try some CBT as well, it helps :-)
take care, now!