If you can't write in your journal because you're a perfectionist and prefer the pristine beauty of the unmarked page over your own handwriting, Kerri Smith has lots of ideas on how to mess up the journal enough to get past your fear of messes. There are a gallery of examples.
"Creative destruction is a term that refers to the act of making a physical change to an object, blank page or space. It is based on the premise that if you alter an object in some way, you are in fact participating in a creative experience (regardless of the outcome). The intent of creative destruction is to move beyond aesthetic judgements of whether a mark/alteration is good or bad, but instead to allow the mark to exist as documentation of a physical experience or as kind of expression. While the term “destruction” has historically had a negative connotation, in this context it is used to imply simply “alteration" Kerri Smith
Or in other words, people will know that you existed because of the creative mess you've left behind.