I recently learned the same.

I tried to write as much as I can and ended up stressing myself out. If you visit my blog you'll notice that I recently took a 2-day break from Steemit. It started getting a little overwhelming at times and I didn't wanted any stress to affect the quality of my posts.

If you don't write often, but still write your best whenever you do, that's more than enough for a satisfactory result. But if you keep writing all the time, you'll eventually run out of creative fuel and your posts won't be as enjoyable to read.

Creativity is never consistent.