I know this all too well. I wish they made Generic versions of this earlier. However, they wont until 2018. They were in a pretty deep lawsuit, in which they lost, to the people wanting to prescribe this for anxiety. The VA wont prescribe it until it's generic. The bastards.
It works better for pain, as it's a nerve relief.
I would also recommend caution with this, as over usage makes the tolerance grow, which can be very quick as stated above. Also, the withdraw from this is no fun. Not as bad as opioids, but the anxiety and depression is pretty brutal... That's one of the reasons why I think it's stupid that a DR would prescribe this for anxiety... if those said people abuse this, they will have anxiety even worse... plus, that shit is in your head... sitfu.