Also, don't be disheartened by the continual persistence of stupidity and triviality. There are amazing things happening all around us, never forget that. For two generations human civilization has had the unprecedented capability to cause the near extinction of mankind, and yet that hasn't occurred. Measure that in the context of history, it's fairly remarkable. Meanwhile, war is becoming less common (honestly, check the data), more and more people are getting lifted out of poverty every day, amazing innovations are occurring continually, and we continue to reach for the stars. There will always be setbacks from time to time, but you shouldn't let that dishearten you.
Within the next 30 years there is every reason to believe that there will be more developed nations, fewer people in abject poverty, yet more communication between peoples around the world, and perhaps even hundreds of people living and working in orbit and off-Earth.