Allrighty then, here's a save you can use - it's in the crafting menu, make a "Crab's cage", capture it, next morning (not dawn or early morning) go to jungle and enjoy.
I think you misunderstood what I said. I am well
past the point where I made the cage, caught crabs, met mom in the forest, and accidentally picked a red mushroom, leading to that hallucinogenic fun with her.
After that one time, she no longer appears in the forest. You
can still gather mushrooms after that, but they are only brown ones, found where I noted, and you can cook crabs with mushrooms but have no mind effects from them. (I also wish that were a repeating scene, but.....)