The number one reason that I think we have issues with this is that age old comparison with the Jones's. It brings up questions like whether your student is advancing at the same rate fellow homeschoolers are, or am I keeping pace with the school systems valuation of what my child should be doing at this grade level? This may matter if you've decided to try 1 year and then decide if homeschooling is for you. Then it would be a reasonable concern.
If you've decided to commit to homeschooling then it is a different situation. I've committed to homeschooling for my children's entire educations and it's taken most of my first year of schooling to realize something. IT DOESN'T MATTER!!! This may seem an odd realization to some, but it was finally struck home while reading my curriculum for next year. This sentence said it all. "Homeschooling is NOT school at home!!" (second grade, Waldorf Essentials, pg 50)
Pondering the meaning of this simple sentence I came to the realization that all those nagging fears and worries came from the belief that I was supposed to be keeping up with public school. I was forgetting that the beauty of homeschooling is the ability to move at an individualized pace. As Melissa Nielsen says in the Intro, "Direction is more important than speed." I have the gift of being able to take my time, work with my children until they understand the concept. I'm not pressured to keep a classroom moving at a set schedule and hope everyone gets it. If we take longer on some things that's OK, we may go faster on others. I also have the wonderful freedom to pick my topics and focus of study as I see fit. So now, as my first year winds down, I look forward to the second year without all the unnecessary stress of Am I doing it Right?