If you are logging in using the FTP protocol, you will already be in the home directory.
If you are logging in using the SFTP protocol, you should be in the home directory unless you configured your FTP program to go to a different user home directory.
First thing first and that is to make sure you are logging in as the right user. Go to the Web Panel and under Domains choose "Manage Domains". For the Fully Hosted domain, choose "Edit". Pay attention to the following information on this page:
[size=3][b]Users, Files, and Paths[/b][/size]
Run this domain under the user:[_____________] [color=red]← WHAT USER TO LOGIN AS![/color]
This affects which FTP account will have access to the domain, as well as what user PHP and CGI scripts will run as.
Web directory: /home/username/[_____________] [color=red]← WHERE WEB FILES GO![/color]
(can't be changed) /home/username/logs/domain/http
So you want to log in to FTP/SFTP/shell as the user specified in this section and then make the "Web directory" specified in this section if it doesn't already exist.