Hello @Spinella-143, thank you for reaching out to us here at The Community, my name is Sherissa and I am more than happy to assist you today!
Trying to create a new account with a different email will not connect with the account that your boss has created for you - if you need to use a different email you will need to contact your Admin (boss) and have them update the email that they have on file for you.
Try that and let us know how it goes, if you are still having trouble after that please reach back out so we can continue to troubleshoot with you.