Life is hard and always has been, but it's far easier than the lives of our ancestors (on average, of course).
Just look at the people who lived through - or the (200?) million who died in and more who lost everything in - WWII, less than 100 years ago, right after the Great Depression, right after WWI. And they were optimistic and energetic enough to build historically free, peaceful, and prosperous postwar order.
There is far more to do, absolutely. Let's get to work.