Hearthpwn

I am literally rating zero.... IE, the lowest you can be.... and yet I relentlessly come in dead last. I have not managed to even come in second last. I don't know what I'm doing wrong. I have tried focusing 100% of my efforts into upgrading the tavern and then buying minions, I have tried flooding low level minions, I have tried tribals to combo like dragons, pirates, and murlocs.... but my minions only get to like 12/12 and by turn 8 I'm facing 47/47s. In most game modes I always find until I get a rank I'm horribly outclassed with new players who are much better than me, so I think that's part of the problem, but something I'm doing is clearly wrong. Please help!