Hi IndiaQuedley
Thank you for posting your question on Microsoft Community. My name is Steven P., an Independent Advisor. I will be assisting you. It would be a pleasure to help you and I hope to be able to successfully resolve your issue.
I understand that you're forgotten your User Name:
1. Go to the Skype sign-in page:
https://login.live.com/login.srf?wa=wsignin1.0&...
2. Select More sign-in options or Sign-in Options.
3. Select Forgot my username.
4. You'll be asked to either enter a phone number or an alternate email associated with your Microsoft account.
5. We'll send a security code to the phone number or email you used. Enter the code and select Next.
6. We'll show you any accounts associated with the phone number or email you provided. We will hide part of the username for security reasons. When you see the account you're looking for, select Sign in.
For more information, please refer to this link:
https://support.skype.com/en/faq/FA109/i-ve-for...
Best regards,
Steven.