Ok, @amandatrayce, sorry but this is not a thread to talk about that. Perhaps you should open your own topic after searching for an answer.
@stinejuellund, you still don’t say what is that you have done. I’m telling you what you should have done, so see if it matches.
1) If you want your recent posts on your homepage, you don’t need a showcase page. Go to Settings >> Reading and select “Your latest posts”.
2) If you want to be able to tune the way they appear and prefer to use a template, have on the root folder of your theme a file named: template-whatever.php and be sure it has <?php /* Template Name: whatever */ ?> written at the top and a wordpres loop of posts with whatever other code you want. Create a new page and apply the template to it. Go to Settings >> Reading and select your page as Front Page. Be sure to also create one for the blog and apply Blog to the posts page.
cheers!