Frustrated

A friend got me hooked on hunting 'shrooms a few years ago. While I love the walk in the woods and they are tasty, I haven't been able to find more than a handful hunting around Omaha and out to western Douglas county. I have tried all sorts of different locations, but I am striking out something fierce. I am taking a flier here, but does anybody have any tips or willing to share any potential spots? I know finding your own spots is a big part of the fun and they are guarded tighter than the secrets of good fishing holes, but after a couple years of not doing so well I am starting to lose the faith in my mushroom hunting abilities.