While all of the things that you listed are real and actual reasons to be stressed out, it's not like life was less stressful in the past. Just thinking about the history of my own country, your average Pole in the 20th century had to worry
1) whether they can even speak their own language as under Prussian-Russian-Austrian occupation it wasn't allowed under harsh punishment, you could only learn Polish history and language in hiding
2) The restoration of independence after WW1 came with reshuffling of land ownership, so you might have had to abandon all your posessions to move somewhere else
3) general shitty conditions all the way until WW2
4) WW2, 2.4 million Poles killed because they were "the wrong race" and just happened to be in an attractive geopolitical location
5) WW2 ends, but we get 40 years of communism instead. Now your daily worries include whether you get a government-assigned job on the other side of the country so you don't get to see your family, and secret police coming to disappear you for saying the wrong thing at the wrong time. General shitty conditions unless you follow the party line.
In comparison to that, life in the 21st century is "honey and mead" as they say. Yeah sure young people struggle with climate change and buying a house like everyone else, but it's not like the lives of their ancestors were any less stressful(and most likely more so).