You mean you can't access cpanel? You will have received an email when you purchased your domain and hosting. Look in your 'junk' mail (I feel sorry for Godaddy as a lot of their mail seems to be found here which is unjustified and unfair), click on link within to access.
If you still have trouble then contact support. I hope you don't think i'm making assertions but if your English isn't so good try using google translate and live chat.