Just write something
I have lost count of the number of times I have started a blog, obsessed over getting it to look just right, fixated on the details of the RSS or Atom feed it generates, and then never actually post anything. I always put the cart before the horse. New plan. I will write something. Even if it is stupid, it goes in the box and I hit submit. The rest will come if it works out. I want to stop letting the fiddly details get in the way.
Every time I actually write something, I feel better. Therefore, I will write something. Anything. Once a day. That's my promise to me.
Edit: I have spent less than 10 minutes choosing a bog-standard theme. I will let it look how it looks.