This is an academic paper that presents the findings of a survey among young adults during the coronavirus pandemic. Nearly half of participants reported a great degree of loneliness, almost 80% reported depressive symptoms, 61% reported anxiety symptoms, and 22% reported drug use (with 38% of these reporting severe drug use).
Horigian, V.E., Schmidt, R.D., Feaster, D.J. (2020). Loneliness, Mental Health, and Substance Use among US Young Adults during COVID-19. Journal of Psychoactive Drugs, Epub ahead of print. doi: 10.1080/02791072.2020.1836435