I want to remove Mosyle, I can’t activate a vpn, and I can’t leave the district what do I do

The presence of a management profile indicates that the device is centrally managed by an Enterprise or Educational establishment. Devices that are configuration locked by an MDM platform can usually only be released from central management by the platform that manages the device. Be aware that Apple will not assist with removal of management profiles.

Unless you are lucky - and have the option to delete the profile from iPad Settings - you’ll need to seek assistance directly from the System Administrator who manages the device. 

Install or remove configuration profiles on iPad - Apple Support

I take it that it is a school-managed iPad? If so, best to contact your IT support to allow you to remove the profile that manages the iPad.

Good luck.