I am sorry are having this issue, I will do all I can to help.
Your Apple ID username is ***** ***** address that you owned when you set up your Apple ID.
This should help you remember what it could be potentially.
If this does not help, then there are other strategies to figuring out what your Apple ID's username could be.
Please see all the advice in this Apple guide: https://support.apple.com/en-us/HT201354
Once you know your username, you can proceed to resetting the password.
It's easiest to do this from a computer because of two factor authentication.
To begin click this link to open iForgot: https://iforgot.apple.com
Enter the username which is an email address, and continue.
Depending on how your account is configured you will be asked to verify in different ways.
Once you can verify successfully you can set a new password.
If you have any questions please let me know, thank you.