Tried printing a helmet stand....

Can someone help me troubleshoot this print? I've been having issues with Z offset, im using an Anycubic Kobra 2. This is gonna be my last print on this thing before I switch to a Bambu X1-C, as I've been having so many problems with the calibration on my current printer, im pretty sure something with the sensor height is off, but every time I find a fix, after awhile the print starts to look like this. Maybe its an over/under extrusion issue? I've also had problems with that in the past.