First photo link into page

Hello,

I am looking for a way to have the first photo on my blog link directly into the post.

I post many photos, have the first one show up on the home page with a more button. The more button works just fine. What i have found is people are so used to clicking the photo to enter posts in general. When you click on a photo on my site, it just load the photo to a page by itself.

To see what i am talking about check out this page: https://fondalashay.com/blog/ any post with a photo will do to see what i am talking about.

I am not sure if there is just a line of code i need to add or if there is a plugin. Any help is appreciated!

Thanks!
Fonda LaShay