I would like to toss another one out there that hasn't been mentioned yet. I am somewhere in the depression/anxiety/frustration category. I am on meds (LOTS of them, lexapro at night and cymbalta in the morning for the depression). I am also in therapy.
One thing I have discovered about therapy.... one hour only begins to uncover what needs to be talked about. And poof, time is up. I started keeping a journal. Just a few short sentences at first bc I wasn't really sure how to start. Then, I began tackling more and more and I am writing on average 2-3 pages a day. It's easier for me to type than wrtie and a heck of a lot easier to read later.
Here is what I discovered. I have what I refer to as a cyclone in my head. It's every emotion known to man and they swirl and swirl and there is no stopping them. When i would try to focus on the good : dd, for example, I would be happy and grateful and overjoyed... but these feelings would be short lived before the guilt, anxiety, pressure, regret, instability would all kick in and I would be a mess.
With writing I am able to sit down and sort these feelings out one by one. It forces me to focus one at a time. I also started posting this journal online and I was amazed at how many others were having the same problems and who could relate. I am not saying writing is for everyone or that it should replace other therapies, but it is beneficial for some.
Hope you are feeling better soon. Hang in there.