Hi Alicia,
I tried to visit your site but it is under maintenance mode.So i could not access your site.
Not exactly, Yes you need to create one blog page and assign it as a blog blog medium template. and create the post it will display it in blog medium. To display it in front page you need to go to dashbaordc -> setting- > reading-> static front page and select blog page.
Then it will display the blog image medium in home page.
Hope you got what i mean to say.
Thank you!