Could you please explain the reason for that much 'censorship'? Sorry but I'm not comfortable with that and I believe I may not be able to help with that much 'hiding' of data, even if I wish to.
Most of us here, including me already take enough care to suggest the user to obscure or delete sensitive data if any is possible to show up in any output.
For now, I was expecting to see the exact name of your connection so that I could suggest you the exact command to check your 'key-file' for the connection. But anyway, you may try this -
..and see if the "system-ca-certs=true" line exists. If not, you may have configured it improperly.
sudo cat /etc/NetworkManager/system-connections/<whatever is the name with "M" next to it>
Note that the CA certificate can be "Ignored" for this type of connection, but is highly recommended. Since it is a school network, I doubt they don't have one. If they have, it may be what is preventing you from connecting to it. Usually, it is a file given to you by school authorities, which you add by clicking at the 'browse' button in front of "CA Certificate" field in the security settings of the connection, as shown in the screenshot below -
If everything is fine on that part, then I would ask you to run a script (from the "Wireless Script" link in my signature) and post its output, but then it may be too much trouble for you cuz it would contain too much data to be censored (and may be useless for me 'After' the censorship).