I had a really rough 2019 & 2020 - not including the pandemic. Multiple health issues in myself and my family + financial issues + the pandemic. I am 45. Comp

I had a really rough 2019 & 2020 - not including the pandemic. Multiple health issues in myself and my family + financial issues + the pandemic. I am 45. Comparing pictures my hair at 43 vs 45 is unbelievable. Almost no white hairs in 2018. Today, half my hair is white. I had so much stress that I had to create a sleeping video playlist on Plex to drown out the nightmares and get a full night sleep. Now most of my problems are resolved - I'd really like my black hair back. I'm skeptical that it'll return to normal naturally. Do men color their hair with products? I look ridiculous - 15 years older than I really am.