And, yes this is the forum and you opened a forum thread. However, if you would like to write a Hub, then click on "Start a new hub" at the top of every page.
Btw- please visit the FAQ's page and the Learning Center, so you have a better grasp of Hubpages. I only say that because of your statement about writing a blog. Writers here don't write blogs, we write full length articles on all sorts of topics, which is why I suggest you visit those two above pages.