See if you can get an email option. For the Apple ID password, enter the Apple (iCloud) ID and click Forgot Password.
Apple ID - Manage
Apple ID – Forgot Password
If necessary, you will need to use account recovery. The Recovery Process is an automated process and the length of time it takes can vary a lot. Apple ID Support can only answer your questions. They can't intervene in or speed up the process. The article below has some suggestions to shorten the the time the process takes.
Apple ID - Recover your Apple ID with two-factor authentication account recovery.
The only way to reset it instantly is to remember the password and sign into your Apple ID.