My only question about this game is: should I quit Dominion forever, or just commit suicide?
Just commit suicide. There's isotropic in heaven.
As for the game: open Tournament over Silver. After you get your first Province, add Highways to your deck and don't buy anymore Silvers or other stop cards. You want to focus on playing Followers + Masq every turn, thereby effectively leaving your opponent with only 2 cards. "Nothing" is a better prize than Bag of Gold to this end, and you certainly don't want to junk yourself with the 7 Silvers and 6 Golds you ended up having, which makes your prize advantage effectively useless.
