Posting more articles isn't the solution at all.
If no one is reading your current articles how will posting more help in any way when no one will read them either?
I've been running blogs for years and what worked years ago still works now.
Create REALLY great content. Not mediocre content. Not content stuffed with keywords aimed at search engines. Not content that you wrote in 5 minutes.
REALLY great content so good that authorities in the niche and your target audience cannot help but share, link to and comment on.
Then you find ways to get your target audience looking at your content by figuring out where they already are and coming up with ways to get them over to your site.
That can be through guest posting, blog commenting, interacting on big social media groups, sharing in niche Reddit groups, participating in forums that allow you to share content or have clickable signatures.
The key is to network, network, network at all times with authorities, bloggers and influential people in the niche. Write about them, ego-bait them, link to them, share their stuff, do something for them.
Forget about relying solely on search engine traffic for your blog as when Google catches up with you it will be taken away and you'll be left with nothing.