Adding my blog posts to my theme- help!

I have created my first, own custom theme in WordPress – its looking great but I would like to get my Blog working now?
The primary purpose of my site is the Blog but I cannot seem to get my Posts to come up…

Here is the URL: https://blog.melbournebridalguide.com.au/

Can someone help me to decipher which page and what codex I need to add to get the blog function working on the home page?