SIP disable after bricked Monterey installation?

I installed Monterey on my Mid 2014 MBP 11,3. Without issues. Then I enabled all SIP features. And now it is bricked. The login screen appears, but during logging in an error occurs and the computer restarts.

Is it possible to disable the SIP elements again? I already tried:

• Re-installation of Monterey, but in the last step of the installation the computer freezes
• Using the Terminal in the installation program and disable SIP with csrutil disable. Doesn't work, because it is no Recovery (command works, but it doesn't save it)
• Booting into Recovery (EFI -> Recovery) doesn't work, nothing happens there. So there csrutil disable should work, but unfortunately not loading

What is needed, to turn it off? Where is this information stored? Can I somehow use the Terminal from the installation dialogue to access my file system and manually do the editing?

Every Help is really appreciated! Thanks so much!