There have been many threads regarding this subject. I too have tried kits with virtually zero success.
However there is an alternative. I purchased a quantity of "spent" mushroom compost from an organic grower locally. He only grows Chestnut. When I brought the compost home, small mushrooms started popping up almost immediately so I placed a quantity of the "spent" compost into a polystyrene fish box (local restaurant throws them away) and withing 10 days I had a superb crop. But that's not all, the compost that I put onto my Lottie has been producing delicious Chestnuts almost continually. Good luck....Dinger