If you could, can we back up a bit?
I am using version 18.104.22.168. The first issue I had is that I can't get my blog to work. So I went to WP > Reading Settings > from there I have my front page as a static page and my blog was blank, as I wasn't using it. So I set my blog status page to a page I created called "Blog." From there, if I went to my "blog" page it shows my posts but I didn't know how to format how they looked - which is when I asked you how to do it. You instructed me to use the templates feature, which I enabled. It seemed to format the blog page correctly - however it now does not show any new posts. Just the posts that were there from before. I turned the template feature off - and my new posts show up. I turn it on, and they disappear.
I thought perhaps it was the WP > Reading Settings > that maybe was interferring with the new template setting - so I turned that setting to Blank or None again, and when saving then it shows my Front Page (which is a static page) in my blog format, with no posts. So I have to leave that set to my blog page.
So I'm stuck with a blog that doesn't show new posts, or I can revert back to the basic settings of showing blog posts without formatting. So I have 2 questions: 1., how do you specifically change the settings of how the blog page displays posts, without using templates? 2. Is there any way you can log into my theme and see where I'm going wrong or what is conflicting?