You don’t want to try and permanantly install twrp, even though some instructions seem to point to it.
Trying to understand your steps so far…
If you followed these steps
“Once booted, navigate to the Advanced > Install Recovery Ramdisk option. This will ask you to select the image you want to install TWRP from. Select the TWRP image you just downloaded and copied into device storage. Proceed to install this image.”
I wouldn’t know how to help.