Kali Linux in Virtual Box Help

I'm essentially learning how to hack WPA2-psk networks by practicing using my phone's personal hotspot. I have a TL-WN722N adapter which is showing as connected but the PHY is showing as null.

I'm pretty lost at the moment and new to Kali so I am looking for some advice, perhaps even as far as how to carry out the aircrack-ng hack. I just need help getting my adapter into adapter mode and start capturing packets.

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