Set me a challenge

I've just got into civ 6 (vanilla, no mods) a couple of weeks ago and spent 80hrs so far trying to get a deity win. I got my first one today playing Germany with a domination victory on turn 260. It feels like I've completed the game, and I'm not sure what to do next, any recommendations?

I've just got into civ 6 (vanilla, no mods) a couple of weeks ago and spent 80hrs so far trying to get a deity win. I got my first one today playing Germany with a domination victory on turn 260. It feels like I've completed the game, and I'm not sure what to do next, any recommendations?