Why'd you open Workshop/Potion? Your chances of drawing $4P on turns 3/4 are incredibly small and the Golem wouldn't help you very much at that point in the game anyway.
The first thing that you should take from this game is that a Tournament stack is pretty weak in the endgame when they're liable to become useless. You certainly don't need 9 Tournaments, and though they're nice if they're not blocked, they effectively render your turn useless when they are. Another thing to consider is that all of the Tournaments get in the way of your Golems, which is a defect in your plan to begin with.
You should also recognize that Followers basically kills your economy. This doesn't mean that you should ignore it, but since you grabbed (or are likely to grab) the only handsize attack available, you should also consider investing in a Vault. Vault at least gives you $ in exchange for discarding a bunch of Estates. Yet another possible consideration is taking the 4 Silvers option with Trusty Steed to give your endgame economy a leg up.