Add https on sharepoint 2013 on premise [closed]

I got a problem when adding ssl to my sharepoint 2013 on premise (Windows server 2012). The website works well with http, and I followed some instructions as following:

1. Create self-signed SSL
2. Go to the Sharepoint tree, binding the website with https and port 443. The certificate is the one just created.
3. In the Internet Explorer, go to SharePoint administration, choose Application Management then Alternate Access Mapping. I add "s" to http, Default to the Zone.But when browsing on the IE, I got error HTTP 404 for https://mydomain. If I go back to SharePoint administration and remove "s" for this url, all works fine.So, I failed to add SSL to my sharepoint url.Thanks for all advices.

I only used self-signed certificate. I tried to "copy to file" .crt and add it in Manage Computer Certificates->SharePoint but still no hope.