Wi-Fi is only on the pc but not on the cell phone, what can I do?

A few days ago i managed to find out the Wi-Fi password of our school. But when I connected, it said "internet may not be available". Although we had Wi-Fi on the laptops. Now I wanted to ask what I can do so that I can also use the Wi-Fi on my cell phone xD.

That is on purpose. The school also has safeguards against annoying students. And only by the way, if you would log in, they would find out at some point and then there's real trouble. Better use your mobile data.

I know that this is on purpose, otherwise they could have given me the password. I just want to know how to bypass these safety precautions. And if I wanted to use my mobile data, I wouldn't need Alan. And should they try to find out that I have registered.