Hello,
The blog posts displayed on phone view show a LARGE spacing above every image attached – just showing large white spaces between the copy and image mid blog post.
I can’t go in and edit it individually because the navigator just displays the article as one block. How do I fix this?
Welcome @sophieariachen 
A share link would be helpful. That said, I’d guess you have a RTE bound to your CMS for your blog posts? If so, that’s the behavior, the navigator displaying the article as one block. You can go into your CMS and adjust the image spacing for that RTE element as one possible solutions (there are other solutions as well if you need more options).