Deindexing site ...

Hi ... I hope this is the right area to post this question. Does google advise its applying a penalty to a website. Over the past two months or so, google as systematically de-indexed my site content. All the content is original, contracted for by me; roughly 4.5 non-duplicate content has been added weekly for 7.5 years. I provide a new sitemap each week. I disavowed all "unnatural links." I tried everything to figure out why the de-indexing, which now amounts to roughly 50% of my content, is occurring, each day, but to no avail. Only cause, I can figure, is penalty of some sort, but for what or why. All thoughts offered on this matter are appreciated. Thanks.

 

Too much disavow can harm your website.
You have disavowed the good links that helps your website.

 

This would lead to such massive de-indexing? Wow! Thanks, but I hope not.

 

do article and blog submission with proper link optimization and images plus quality of content and use long tail keywords in your post regularly....just try to get more traffic on your site by natural work....it will help you