I think that working on your own website can be a good Forever Project.
It’s an open-ended topic that you can explore for a long time without running out of challenges.
Also, this is spot-on:
Compare two different situations where you tell a story at a party. In the first situation, you tell the story in a corner to one or two people, who are totally interested and smiling. In the second situation, you tell the story in the center of the party with a large group of people around you, but they’re almost all bored and uninterested, talking amongst themselves and largely ignoring you. The first situation sounds better, right? Well, that’s the non-obvious benefit of blogging. There are a load of people out there blogging, and almost all of them are better writers and better looking than you. Nobody is going to read your blog about frabulizing widgets unless they really care about frabulizing widgets. So it’s not going to be a big audience, but it should be an interested audience. And I think you’ll find that you get 90% of the benefits of socialization from a handful of readers as you would get from a sea of readers.