Interesting idea. I think writing 500 words a day is great. To me this looks like something that is more meant for you, than for your readers. If that's the case that's completely fine - at least for me part of the nice thing about blogging is it helps me to refine my thoughts. This also looks like a great way to just get better at the craft of writing. But if you really want to be read, you'll probably at least need a slightly different format than this one.
If that's not the goal though, then I really like your idea in making this.