Have you considered Taipei? Perhaps that might have more of the benefits you're looking for and might be easier. You could easily work, if you became interested, as a part time teacher, too.
But, I actually gather that I'm a bit older than you, and even if you move if you feel it's necessary, you should really keep in mind that everywhere has it's drawbacks and upsides (like HK_Katherine pointed out). You can go to really nice, well developed, wealthy countries, but you'll still get sick of one thing or another after a few years. There's no utopia.
In the mean time, take full advantage of your close proximity to South Lantau and go have a drink at High Tide on the beach. Kick back and forget about pollution for a bit and just soak in that amazing scenery!