Re: organic really better?
First, you are certainly not doing more harm than good eating non-organic veggies! Obviously, the fewer pesticides, the better... but if you can't afford it, you can't afford.
Second, I don't really buy into the whole organic craze that seems to be everywhere. Farmers markets, sure. But the ones at the supermarkets are just big corporations like all the other vegetable producers and, have in fact successfully lobbied the governments to have the standards changed so they can label their food "organic" (i.e. so they can charge more).
I've tried St. John's Wart for depression, but it didn't do a thing for me. Others I know swear by it. I think it's different for everyone.
I've never heard of damaging yourself from eating too slowly. In fact, all the evidence points to the exact opposite.