Clue about this funk

I think all my web wandering recently, research for my Dreamweaver book, greater involvement in blogging once again, is leading to that feeling I described to B on the phone today as the undertow—the feeling of being dragged out to sea.
My eyes have always been bigger than my stomach, and my stomach bigger than I’d like it to be. I reach this point where I’ve thrown my senses open wide and I’m trying to take it all in and suddenly ALL is way too much and I think “how can I ever do this?”
I can’t keep up. If I have an idea, someone else is already doing it or has done it better. I get into that feeling that’s a cross between What’s the point? and Where do I fit in?