OK so I'm COMPLETELY new to Digital Ocean. I had someone transfer my Wordpress site from Hostgator to digital ocean and the site is up and running. However it is a WP site and I'm trying to update both the theme as well as some of the plugins. It was my understanding that I can do so within the wp-admin. I enter in my host name, username and password. However it is not working.

With those same credentials, I am able to log into my digital ocean server using FTP, but those credentials do not work within WP (if this makes sense).

Are all the changes I want to make to my site done within Digital Ocean or can I connect the wp-admin to my digital ocean server and still work within WP.

Really, any help I can get is much appreciated.