I was given adivan for severe anxiety i feel awful why?does it take a couple uses to get use to it?

but it make me feel awful super tired,my movment was just slo mo.......i felt awful=(.....i also take 100 mg.zoloft 40mg,dexidrine i was upped 50 to 100 mg on zoloft 2 days ago its not making a diffrence does it take time if oyu switch mgs??ugh i just want the anxiety and deprssion to subside any advice or thoughts i would really appreiate your help...