Can't Connect to Wifi

Greetings all,

To start with, I’ve had my rpi volumio player working for a while now without any problems on my home wifi. Last week I tried to set it up to work on my school wifi, but it won’t connect to the network. With the hotspot enabled, I connected to it and set it up for the school’s wifi but then once I disconnected from the hotspot, I couldn’t connect to it through the school wifi and the hotspot also disappeared. Since then, I’ve also tried to pre-set the SSID and password by editing sudo nano /etc/network/interfaces to no avail. Am I missing a step somewhere? It’s been a minute since I originally set it up.

Thanks,
Gr1ff