What if the reason you're stuck is that you've been doing the same things for way too long?
That you've tested very similar things instead of very different things.
That you've experienced very similar things instead of very different things.
That you've spent your time with very similar people instead of very different people.
That you've read very similar books instead of very different books.
That you've listened to very similar music instead of very different music.
What if...?