Hi IsobelRose! Congratulations on your success
A half marathon is a great goal and happens to be on my bucket list. As you've probably noticed if you checked online, there are countless ways to prepare for a 1/2 marathon. While I haven't trained or ran in one, I was intrigued by this training schedule and resource suggested to me by one of the runner Chicks on this site.
I like that it is a 6 month training schedule rather than the standard 12-16 weeks. It seems very doable. And while I've been running for over 3 years, I really do consider myself a novice in so many ways. Another reason this schedule suits me.
Good luck and keep us posted!