I'd certainly be around to the Vatican and have a word about camels and eyes of needles and the like, and suggest they might like to sell up a shedload of their properties, as my dad says you can worship anyway, you don't need a lot of gold plated stuff and marble statues and the like.
I'd probably then take the founders of 200 large charities, and have them swap places with the heads of states of the countries of the world, using a massive mind trick to make the population of say, Uganda totally accept that their leader is now tiny grey haired old lady in a cardigan.
Then I'd take the 200 richest people on the planet, and explain to them that they're going to be now assisting one of each of my new leaders in making my future become a reality, because I know merely having good intentions goes nowhere without good business sense, but the kind of people who can make $50 billion, are the kind of people who can turn around countries if they had to.
Those 400 to start with, get invulnerability and immortality until they screw me over, then it fades.
I'd then get to work, not completely balancing the rich n poor of the world, but equalising it enough so that no-one needs to be hungry or homeless or without basic work and education.
I'd then be assassinated (as I'd be too important and famous by then to be merely murdered), as humanity really hates anyone who changes things for the better, whereas tyrants and despots and mass murdering warmongers tend to die in bed at 90.
