How to promote an article site?

Question

Search Engine Optimization

Good afternoon. I am engaged in the creation and promotion of sites on WordPress, but things are going poorly. My result so far:

Subject - building
Articles - copyright (85-100% uniqueness)
Attendance - 900-1100 people per day.

So I came to the conclusion that I'm doing something not quite right. More precisely, I am completely and completely sure that it is possible to do better. Are there any fresh courses on how to promote article sites in search engines?
I promote in Yandex. I'm just typing requests from wordstat. Usually, for an article of 3000 characters, I take 1 high-frequency request and 5-6 mid-bass.
In general, information of interest:

• How to choose the right queries for article sites?
  
• Internal website optimization on WordPress.
  

Answer 1

Such attendance at a young site is pretty good.
I advise you to review again how your site is optimized, or ask someone to do it.
Then buy links from trust sites and thus increase your positions in the PS.

Answer 2

Buying links, and even more so anchors, can be fraught with consequences .. I don’t know if you have heard about Minusinsk. More keys - more people. You can replenish with low-frequency speakers from adwords, mail.ru statistics. I can make a selection from all the latest Pastukhov databases, and soon Moab (as soon as I save up)
+ make a mobile friendly website, implement microdata, be sure to have a rating plugin (so that there are stars in the snippet), add lastmodify, dublin.rdf, you can also translate to https ( costs only 500 rubles per year)
Buy an old domain by topic and make a page redirect from it + pay special attention to behavioral factors (sapienti sat)
Pay attention to competitors above. What exactly are they better - in that direction and move.
For example, you may have a clumsy linking, and they drain the weight on the HF (you can look at it with a pageweight, it is free for sites of no more than 50 thousand pages)