Un Sillion Para Mi Mama is a good story for learning tenses, etc.
I slowed this recording by 10%.
Download a recording from this location: (Copy link and paste into browser)
Word file with edits (some sentence sequence reversed for Spanish, etc.)
My suggestion is to listen to this, repeatedly, and record your version, and then listen to that, too. See Post for Learning with Goldwave, on this blogsite (this one, expanolahora.com)
Let me know what you think.