If you have moved to a different company, or you are using a different address than the one you do most of your work with, there is no need to create a new account. Simply change the address associated with your LFID
Instructions are here: https://docs.linuxfoundation.org/lfx/my-profile/adding-alternative-emails
Note: if you only have only a primary address listed and wish to change it you must first add an alternate email address and then change your primary address to the new email address. After you have confirmed that new address you can delete old one