All I want to do is see my Apple username

Hello:) When you create an Apple ID, you enter an email address. This email address is your Apple ID and the username that you use to sign in to Apple services like Apple Music and iCloud. It's also the contact email address for your account. also see this helpful info previously posted by Eric Root:

I suggest you see if you can recover the ID/password. If you create/use a new Apple ID, you will lose access to some of your data and the purchases made with your existing Apple ID. 

Apple ID - How to find your Apple    An iCloud e-mail address is an Apple ID.

Apple ID - Find              

Enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage            

Apple ID – Forgot Password            

~Katana-San~