…get a bigger hammer.
I saw this a lot, and while it’s an amusing saying, really it’s about trying something new, trying something different, not accepting the status quo.
Persistence, practice and perseverance pays off – in the end. (Alliteration always allows artful aphorisms too, don’t you find?)
If you try and write a play and you’re not as good as Shakespeare at your first attempt, don’t give up – he had more practice. If your first symphony sucks, well, even Mozart had to learn (even if he always was rather good at it.)
And if at first you don’t succeed… yeah, finish this one your own way.