If you could give your twenty-year-old self one piece of advice, what would it be? Why?

So if you're above twenty, what advice do you have for your past self? If you are twenty-something, what do you tell yourself everyday to be the best you can be? And if you're under twenty, what's one thing that you hope your twenty-year-old self will remember about adolescence? Thank you so much and I look forward to seeing what you have to say!