How do you think we'd be living now if Hitler had won the war?

It's very hard to tell, but as for guessing. If Hitler had won most of Europe would have been Reich territory or subject states for a time. The USSR would likely have never recovered and receded far to the east, and Reich resources would have been poured into Eastern Europe to try to control and stabilize the region. It wouldn't last very long though, as it broke down into various rebellions and perhaps a civil war. The Reich would eventually collapse and New European states resembling the old would have been carved out of it. Vestiges of the Reich would remain intact in some strongholds, but infighting and stagnation would make them unable to project influence very well. Hitler's death at some point along the way would likely serve as a spark for the collapse. Ironically it might have made communism more popular in Europe, as a backlash against the Reich. Without the USSR to fill its historic role opposite the United States, the Cold War looks very different. The US mirrors the authoritarian rise in Europe, but as its adversary. Steeling itself against the machinations of the Reich rather than the USSR, clandestinely supporting both Eastern and Western European rebel groups against them. Nuclear proliferation takes longer, and it's first use occurs in the former USSR rather than in Japan. Galvanizing the resistance to the Reich. I'm just rambling and speculating. The whole thing is too complex to have a confident idea though.