"You've got your whole life ahead of you," young adults are often told—but that's of little comfort to the many 20- and 30-somethings who face "adulting" challenges like career uncertainty, overwhelming student loan debt, and relationship difficulties. The uncertainties of this time of life leave many feeling depressed, insecure, and rudderless. The good news is that you're not alone—there's a name for this experience: the quarter-life crisis.
source https://www.lifetechnology.com/blogs/life-technology-news-blog/experts-explain-how-millennials-can-take-care-of-their-unique-health-needs