This is our first year homeschooling and I had every emotion that you are feeling. I was a public school music teacher for 10 years and had miles of experience but still was terrified that I would be doing my DD9 a disservice if I decided to HS. I decided that I needed a structured curriculum that would guide us with pre-made plans and lessons (strange, because my school system couldn't afford a music curriculum so I never had that structure during my entire career). We are using the K-12 series as independent learners, that means we are not affiliated with any of the many state, virtual academies that use K-12. So far, I've been happy. I like the structure and scheduling options it gives you and I've been very pleased with all the curriculum content so far. I really liked the placement testing that allowed DD to accelerate in her stronger subjects. We have recently started using Life of Fred as a math curriculum, there wasn't anything wrong with the K-12 math, DD just HATES the traditional math method and needed a change. We still do the core K-12 lessons and assessments but she is using and enjoying LOF much more. I would agree with everyone that you don't NEED to buy anything your first year, it just made me feel better about my decision to "have a plan". Take some time to allow your children to explore what they are interested in and don't get stressed about having some relaxed, fun learning for a while. Then, add some structured lessons a few at a time till you find a balance that works for your family. At this point, almost 6 months into the journey, things are going great and we have no plans to go back to a B&M but, never say never. I may not continue with K-12 forever but it has provided some good training wheels for us as we learn how to make this work. I'm not affiliated with K-12, there are other curriculums that provide the same kind of structure and that would help to bridge the gap. I just wanted to share what has worked for us as new homeschoolers. Good luck! I think you will enjoy the ride and if you don't, you can always get off.