1) Open https://account.live.com/password/reset in your browser.

2) Select I forgot my password option and click Next.

3) Enter your email address or phone number to recover your account.

4) Enter the code you have received and click Next.

5)Type a new password and repeat it for confirmation, then click Next.

6) You have reset your Skype password and click Next.
https://www.quickfixnumbr.com/skype-account-recovery/