Hi sun,
You can use the following command to copy the content of your home folder on the server to a backup directory on your local computer:
rsync -e "ssh -p 18765" -aHz YOUR_SERVER_IP:/home/USERNAME/ /home/LOCAL_USER/BACKUP/
Change YOUR_SERVER_IP with the IP of your server, USERNAME with the cPanel username of the account you want to copy from, and LOCAL_USER/BACKUP with the path on your computer where you want the home folder to be copied.
hope this helps