If you want to stay interested in your blog and keep it true to yourself, then you have to blog what you want to blog.
Sure, someone else might have a really interesting, fun, attention-getting feature or writing style on her blog, but that doesn't mean you need to have something similar. Just because other people do memes doesn't mean you have to. Basically, if blogging starts to feel like a chore, maybe you should sit back and think about what you're writing, what you're reading, and what your blogging style is.
Personally, I love reading memes on other people's blogs. But I know that I would hate to have to come up with something to post every week or whatnot. And I just really can't be bothered. I also know that I'm NOT going to post something every single day, and maybe sometimes I'll go weeks without any posts (like recently..), and once I accepted that that was just how my blog was, I was a much happier blogger.
So just listen to yourself and have fun is what I guess I'm trying to say. If you don't think blogging is fun, then maybe it's just not for you :)
I've had a blast all week reading everyone else's posts! I've met some great new bloggers too!