Log in link:
You can log into Xero here- https://login.xero.com/identity/user/login
Forgotten password:
You can reset your password here- https://identity.xero.com/account/forgot-password
Log in issues:
I am sorry to hear that you are having issues logging in. You can find help on how to resolve this here- https://central.xero.com/s/article/Can-t-log-into-Xero?