troubleshooting please??

i used about 10g of ghee to 1g of powdered dank, had the water just barely boiling underneath for at least 3 hours, cooled in freezer. it was looking light green as a solid; i cut it in half and ate one half with a piece of bread, assuming it would be about half a gram's worth thc. 3 hours later, no subjective effect that i couldn't blame on placebo.
what the hey?