So I installed the Nvidia drivers on my Kali box as per the documentation, now it fails to boot normally. The following messages get repeated over and over:

[OK] Created slice User slice of Debian-gdm
Starting User Manager for UID 133
[OK] Started Session cXXX of user Debian-
[OK] Started User Manager for UID 133
Stopping User Manager for UID 133
[OK] Stopped User Manager for UID 133
[OK] Removed slice User slice of Debian-gdm

The above message just repeats constantly, until Session cXXX reaches 505, or causes the screen to flash.
I have tried reversing the changes made however it hasn't solved the problem. I've searched for this issue and had no luck. I've even tried restoring the GDM packages whilst in the recovery mode. It doesn't allow me to access tty or ctrl+alt+f1.
Any help would be appreciated as the last thing I want to do is try and rescue all my data and starting again. Thanks