You asked for one thing you can do better?
Come up with a more direct, focused CTA for the end of your posts. Something that’ll make people stop dead in their tracks and practically FORCE them to sign up for your email list (or visit your blog or sign up for you coaching program or whatever your #1 goal is).
Right now you CTA is too loose and unfocused.
Tighten it up, and you’ll get a much better ROI for each post you write.