The past is only in your head, and the future isn’t here yet, so there’s only one moment that truly matters, and that’s the present moment. No matter what time it is it’s always now, and you have to do the best you can with your now moment because you’ll never get anything else. She’s saying that if you do the best in the now it’s all you’ll ever need because everything else will work itself out. Breath in. Breath out. Go make magic!