Dear Shy Introvert,
I'm sorry your life is so tough right now. I was on Xanax (it's a lot like valium) for a while in order to stay calmer at a stressful job. As time went on, it was less effective for dealing with the anxiety while making me more numb to my feelings. My therapist says: people start building up a tolerance. In retrospect, I really should have started therapy when I started my medication. It's important that we try to take care of ourselves and deal with our stressers head on. I know there are some stressers that cannot be removed. And depression is the ultimate stresser. When you have time, please keep posting. I truly hope you life improves!
Sincerely, Myst