If your nihilism doesn't make you happy, you're doing it wrong. The absence of meaning should be a liberating factor, not a limiting one. It's actually dope as fuck that there's no greater purpose to your life, you can never fail as a person when there's no standard you feel you have to meet.
basically life is minecraft: there's no goal, we have to give ourselves reasons to live, and we can make those reasons precisely whatever the fuck we want, and that's what makes it so fucking brilliant.