Hi lubmir,
It sounds like you're having an issue with your Apple ID password. If so, check out the steps below to change or reset from a trusted device: If you forgot your Apple ID password - Apple Support
"Reset your Apple ID password on your iPhone or other trusted Apple device
- Go to Settings.
- Tap your name > Sign-In & Security > Change Password.

- Follow the onscreen instructions to reset your password.
You can also follow this process on a trusted iPad or Apple Watch.
To reset your password on your trusted Mac, choose Apple menu > System Settings > your name. Then click Sign-In & Security, Change Password, and follow the onscreen instructions."
If you're unable to reset with those steps in above or in the article, use the steps in the article you started from to use account recovery. How to use account recovery when you can’t reset your Apple ID password - Apple Support
Reach out to Apple directly if you have any further questions. Get Support
Cheers.