If you publish content on an ongoing and consistent basis, I’m willing to bet actual money, and without looking at your analytics first, that you have a handful of blog posts that are performing really well for your organic search goals. The rest is most likely a mountain of content that, at best, ranks at a solid “meh” on the performance scale.
If you’re just continuing to create, optimize and publish new content on top of that mountain of existing underperforming content, I have bad news for you: you’re making your content and SEO life so much harder than it needs to be.