Hi Doris, welcome to WikiTree!
It appears you have uploaded a GEDCOM, but have not yet processed it through GEDCOMpare. GEDCOMs are not imported into WikiTree after upload. Instead, you will have to review each of the suggestions (accepting or rejecting as needed), and then adding or editing profiles manually using your GEDCOM data.
As you work through that process, any profiles you create will automatically have your name associated as the Profile Manager, and will also be available in your Watchlist. Any profiles you edit will have your name associated in the change history.
Other than that, there is no need to identify yourself through the GEDCOM or on the profiles themselves.