Popsugar Living Advice People Share the Things They Wish They'd Known at 21 People Share What They Wish They'd Known When They Were 21, and It's Such Good Advice January 23, 2020 by Erin Cullum View On One Page Photo 6 of 21 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 You Might Have Fewer Friends Than Ever, but Don't Feel Lonely Your friendships will be deeper, and your friends are stronger and more supportive. Previous Next Start Slideshow AdviceCollegeWellnessSelf Improvement