I have standard account . i dont know my administration account and password.

When you initially set up your Mac you were required to set up your account(s) plus the account name(s) and password(s). That would have been an appropriate time to record that data. Since you did not, you must now create a new, different password. You can use the link below to do this. This time, record the information and save it in a secure place of next time.

Change or reset the password of a macOS user account - Apple Support