Need help!

[dylanrod24]

hi everyone i need help with wordpress. I have a blog/website and im trying to add a forum to it. It says to add to wp/content/plugin directory or something like that but i cant find where that is and then i have to make a folder named directory. Can someone please help me. I would greatly appreciate it.
my blog is: latestiphonenewz.wordpress.com

thank you for your help