Citation on suicide rates increasing 50%?
> The researchers noted a 31% increase in the proportion of mental health-related emergency department visits that occurred among teenagers in 2020, compared with the year before.
https://www.usnews.com/news/health-news/articles/2021-06-11/...
Now, is it accurate? I'm not sure. Do those result in deaths? I'm also not sure, it might be reduced deaths due to more people home. I honestly have no idea.
Rises in adolescent harm are deeply concerning, and are undoubtedly partially attributable to the stresses of the last 18 months. But they aren't a statistical driver, and CDC statistics actually show a decrease in the number of suicides in 2020[2]. And that's probably for the reason you mentioned: more bodies under the same roof means that it's harder for people to take their lives.
So to summarize: fewer people died by suicide in 2020 than did in 2019, and we can't extrapolate overall suicide trends from just adolescents.
[1]: https://en.wikipedia.org/wiki/Suicide_in_the_United_States#/...