For bloggers just starting out, the hardest thing is to maintain the consistency that allows you to build an audience. The most helpful thing I have found that I do (which most successful bloggers do also) is to write a bunch of posts at a time, and queue them spread out over the coming week or so. It ensures that even if you have a bad day or two, your blog’s readers won’t go elsewhere, and you’ll continue to see readership stay, even if you take a few days off from blogging.
Now, if only that worked on going to the gym.