Making a Dreamer into a Doer

I've been lacking inspiration a lot lately. When I started this blog I was full of great ideas. My first few weeks of posts were right on target. Since then I've had some hits and some misses. My biggest problem has been turning my ideas into posts. I have a list of ideas that I could be blogging about, but every time I try to type the words it comes out as a jumbled mess. I've never been one to talk about something I didn't feel educated about. So when it comes to blog posts I never feel like my opinion is good enough. Maybe I'm just going through an insecure stage, but I'm lacking a lot of the motivation I had early on. I can't seem to find the spark to get writing. 

Fellow bloggers, what motivates you? Where do you find inspiration?