I could recite a few limericks myself, but I seriously doubt poems and riddles are going to help.

I've...got these notebooks I remember writing in. And I remember that whatever I was writing was important. But I don't know what it was and it's in a language I can't read--but it feels like I should be able to read it, I just can't remember how.

Whichever one's right, I'm almost sure it's in there.