! Why can’t I grow mushrooms!.. complete failure.

I did a course on growing mushrooms. I’ve tried growing every variety of mushroom…mushrooms in grain and straw and in buckets it didn’t work. I didn’t even get one so I moved to logs; drilled the holes and filled them with pellets and cover them with wax two years later, still no mushrooms so I got a large dog cage that was spare put it in my garden and filled it with straw wood chip and a tiny bit of compost and put in it a mix that guaranteed to grow mushrooms wild in your garden. Guess what? Nothing! I’m in Tasmania Australia. I have tried all the weathers seasons I have made sure I’ve watered them not overwatered them left them be completely! Why can’t I grow mushrooms?