What do you do when your best work is behind you? Is that what stopped Harper Lee after To Kill a Mockingbird and Margaret Mitchell after Gone With the Wind?
When your best work is behind you – but wait, how do you know? All you know is that work was pretty darn good, and maybe in the end it will, indeed, turn out to be your best, but there’s still work to come, and hopefully the next one will be pretty darn good, too – maybe not that good, but who knows it won’t be better? And why bother to compare?
Do you refrain from writing “Happy With You” because you already wrote “Yesterday” and “Maybe I’m Amazed” and, let’s face it, those were better?
What if – what IF – what if you CAN do better than your best previous work? You have to try – you have to go for it – that’s why you do this, after all. That’s (hopefully) why you do anything – because you owe yourself your best effort.
(To hell with “you owe the world your best.” The world doesn’t have to live inside that body with you – it’s your psyche, your soul, your consciousness and your conscience, and only you know how hard you tried and if you could have done more or better, and you know what? Only you care, when you get down to it.)
Sit down and do your best, or get up and do your best, whichever is more appropriate.