Deleting old work?

In Novembers edition of Writing Magazine there is an article by Lora Bishop who
discusses being 'blocked' and unlocking inspiration..... She tells of how she has thrown out old diaries and notebooks spanning 15 years as she felt they were cluttering up her emotional space.     

Then she starts on any unfinished documents on her computer.  'Deleting old work is less about freeing up memory space on my computer and more about creating mental and emotional space for myself in which to expand' she says.

She says she hopes that by scoring a resolute line through her past writing, she will move into a more creative future.

I am not sure this is the answer.  I suspect that even now she regrets not saving at least some of her old words......