I'd honestly say my peers (i.e. my direct friend group) deal with mental health challenges extremely well and we are extremely open to talking about our struggles. Social media amplifies the loudest voices but I would argue on aggregate Zoomers are better off mentally than a lot of prior generations. Mental health struggles happened in every generation, these young adults are just more willing to talk about it.
I wrote about it above, but clearer job prospects and more reasonable housing option as they are big stresses. I'm lucky enough to be gainfully employed, but many of my friends have been stuck in dead-end jobs with no prospects. Another concerning trend in that vein is all of my friends, including me, have taken extended leaves from the job market at one point in time.
If you could waive your magic wand to help your generation, what one thing would you ask for?