New user - just set up a domain name and email address, but can't find how to get to the new account

New user - just set up a domain name and email address, but can't find how to get to the new account

As it says above, really! I have to say I am finding zoho a very difficult facility to operate.  But having said that, I just wna tto be able to send and receive email using my new domain name.  However, I cannot work out how to log into that new account.  My blood pressure is now very high - somebody please help!
 
Thanks