If you're always able to come up with topics to write on, that itself will become an excellent motivator to write more. Maybe take a step forward and imagine how you'd feel once you publish the post—the exhilarating feeling. Awesome, right?

Initially, I used to think it's not a good idea to blog if you're not saying something new. So I tried hard to come up with topics to write on, and that process consumed most of my time. And I ended up not writing anything at all.

Later I changed the way I thought about blogging.

- Blind posts. What's obvious to you isn't obvious to others. No matter what it is about, keep writing.

- Writing is thinking. It's the best way to become aware of your biases and ignorance. A sure shot way to improve the way you think.

- New knowledge. What was the last thing you searched on the internet? Can you write about that?

Here are a few essays that have helped me get past my 'writing lethargy':

https://sivers.org/nod https://sivers.org/7 https://dilbertblog.typepad.com/the_dilbert_blog/2007/06/the... http://paulgraham.com/useful.html

I hope this helps. :)