A lot of times, people worry about new prosperity, automation, and technology. This is from a Hacker News comment -
"You really gotta wonder how this is gonna turn out. How are dumb people supposed to earn a living when technology makes all the jobs for dumb people obsolete?"
Every time new automation is invented, people think is going to happen. Seriously, this goes back to pre-Industrial Revolution times. Any time part of the labor process is automated away, people think that there's going to be permanent economic damage, and they're consistently wrong.
We'll adapt. There's always new things to be done. Personally, I'm betting on a greater diversity of creative and artistic work happening - people in core industries that are going to remain and grow in profitability (technology, raw materials, energy, consumer goods, construction, etc) will have more surplus income to spend on personalization, customization, different and more unique kinds of entertainment, etc.
If you're worrying about something, one of two things is going on --
1. There's a good reason for your worries, they're justified, and you can potentially affect that outcome. If so, do something.
2. There's no good reason for your worries, they're not justified, or you can't affect the outcome. If so, stop worrying.
Easier said than done. But idle worrying does nothing of value. It makes you go crazy and doesn't make things better.
It's impossible to have perfect control of your thoughts, so worries emerge. When they do, investigate them, figure out if they're justified, figure out if you can do something, and then make a plan or let them go.