Deleted Files on Account Issue

Hello Dear ! I am so happy to join here,i am so so sad because i blowed my cpanel - Removed -, Firstly, i deleted all files from FTP (Filezilla) and went to cpanel that i saw its empty there is only home folder and it is empty, and today i could not access to cpanel.(even it is writing ) and now i could not open (even entering username and pass), this is my first job.