In bouts of depression

I don't know why, but these past few days I have been deep in depression! Life looks so depressing, so boring! Just the usual work to do, and nothing good happening. Actually, I tried to get out of it and went out last weekend to "StockYards", near Fort Worth. It was a good place; a much needed break for me - but when I came back, I fell back into the same abyss of depression. Got to get out of this mood soon!