Customizing standard blog feed

Hello, I’ve been banging my head against this problem for the better part of a week thinking I’d make a breakthrough but I’m just getting more confused.

Site: http://www.fhebil.se
Desc: Car dealer site I’m building with the blog function for showing cars.
Problem: Standard Divi blog-function does not have all fields I need.

On the front page there is a single Blog-post, it shows Title + short summary of text. It’s the standard Divi Blog function (fullwidth). I want to remove the short summary and show content from the custom fields, like price, functions etc. I also want to be able to use those same custom fields to print out price etc on the full blog post (when you click it).

So far I’ve tried for DAYS to get that showing on the front page to no success, I got the variable to show up on the clicked post (“1231312321” on top). I search the whole WP folder for the post loop and added an echo everywhere but it don’t show on the front page. I’m not a coder, I’m a designer but I can edit and partially understand PHP.

I would like to be able to do this with a plugin, not editing any code, but so far I’ve just hit dead ends with all the ones I tried:
* Pods – can’t figure out how to show content on the front page
* Types – same here
* WCK – function I need is a paid function

I can’t make a new post-type since I can only use Posts with Divi Blog-plugin.
I can’t figure out how to extent the Posts with values just showing up on the front page.

What’s the best way forward, what should I learn?