I do not know who Rivka is (I'll have to have a look see), but the thing to remember is that the blog only shows a small part of someone's life. So, yes they can serve to be an inspiration, but caution is advised to remember it is not the whole story.
No two homeschools will be exactly the same in their day to day process due to the indiviuality of children and the fact that the homeschool is formed around the child.
As far as the meltdown goes, there are other potential contributers in addition to the curriculum style. Was it beyond her grasp? Was she frustrated, tired, wanted to have fun with ..., were you frustrated, tired, wanting to get on with other things? One bad day does not constitute failure :)
I know I have not said anything you probably haven't already thought through - but it seems you want to have someone else say it too?
And yes, I agree with Linda, the less you read about other homeschools, the more content you will be with your own. And you will free up more of your time for something else!