Blog posts not indexing

I have just discovered that my blog posts (both old and new) are not indexing on Google... at all.

My old blog posts used to get a lot of traffic, so I'm not sure how they have now been removed/blocked. Also, I know none of my new posts are being seen either. I have just set up my Google Search Console to check from this end (don't judge, I'm behind on this) but could I be doing something wrong when posting these blogs?

Thanks, Heather