Did you add the card to usb list like shown in lecture 11? If you did, then make sure that you don’t physically connect the card to the computer until Kali is fully booted, connect the card, then go to the devices menu (beside the file menu) >> USB >> Click your device.
If you’ve done all of the above then can you tell me the exact model of your wireless adapter please?
Also can you show me the result of ifconfig&lsusb&airmon-ng?

Thank you.