I figure different people have different lists, and I'm one of them :)
I'd start small, whatever it takes to overcome violence, hate, superstition, pride, greed, wrath, envy, lust, gluttony, and sloth.
Things like that.
With all those failings left behind forever, any lingering problems after that could then be addressed with a lot more clarity.
Finally with the resulting peace dividend, I would throw a party like you could never do with all the resources in the world beforehand.
But that's just me.
Whatever you do have at your disposal, you can always start right now at least on your own self, very few people have enough resources to reach very far anyway.
