No matter what the external circumstances, teens have always found ways to maximise their stress and dramatise their circumstances. It was like when I was growing up in the 1940s and 50s, and it's much the same now.
If anything, the switch from single income families to almost universal double-income families allows today's teens far more opportunity and material privilege than they could have expected in the past.
One of the problems today is the Internet. Kids are learning all manner of things which give them a wealth of information long before they are sufficiently experienced to assess what they've learned.
No, I don't think today's teens have more stressful lives than their forebears. At the same time, they are just as capable of falling through the cracks in society as the rest of us were.
This is not a new question of course. In 43 BCE a guy called Cicero wrote, "Times are bad. Children no longer obey their parents." Nothing much has changed over the intervening millennia.