We have sugar sand too! I was going to ask you what soil you have, I figured it was not black gumbo clay, so that left sand or red dirt. We are in a pocket of sugar sand of maybe several thousand acres, but just down the road is red dirt. The red dirt is what most of the soil is around here. Water the sand, it goes right through and is dry in minutes like it never had water.

We have amended the soil with everything we got our grubby hands on. LOL After 6 gardens, it is looking pretty good. Believe me, I know what you are up against. I saw where you joined TEG too, it's a great gardening forum.
Pile leaves in the chicken coop and run, they will enjoy scratching through it and in a couple months time, it will be reduced to a fine black crumble. I've piled leaves 2-3 feet deep in the sheep barn and in no time, the leaves are shredded by their hooves. Pine straw, leaves, they make great animal bedding and the resulting compost-in-place is garden gold. Let your animals do the work for you!