People Share What They Wish They'd Known When They Were 21, and It's Such Good Advice

It's easy to revel in being 21, but remember to take care of yourself, too. Find balance! Don't binge drink and then crash diet. Ramen is cheap, but make sure to have some sort of vegetable every day. Plus, your metabolism only goes downhill, so you may as well give it a good jumping-off point.