Drink more water. Seriously. I can’t stress this enough but you should be drinking lots and lots of water.
Just like you, I heard about the benefits of drinking water for my whole life. But the thing is, only after so many years of not caring about those, I now am aware how much it truly can benefit you. For a couple of weeks now, I’ve been tracking my water intake and try to drink as much as I can. And it seriously helped, with any and every little thing.