I've only been doing the freewrite for about a week now, so welcome and no worries on the slow or self-critical part. I think most of us are a little critical of our writing and in my case, fat stubby fingers make me slow. It's been good though.
I think the story you've told flows really well, and gives a great sense of the helplessness the farmer feels from the drought. Informative and descriptive at the same time, which isn't the easiest of tasks.