Thank you, Dr. K P. I appreciate our kind words. I checked out your site. Yes, anything related to health and wellness is competitive, I'm afraid.
My quick suggestions are to change to a simple WordPress theme (like Astra), create good navigation bar at the top with 2-4 separate categories for collecting related articles.
Then, I would focus on keyword research. Low competition topics that people are actually searching for on Google.
Some of my other articles explain the keyword search process.
I hope these few suggestions help! :)
Christopher