Hello Alyssia. I'm Greg, here to help you with this.
Do you still have your personal account on the PC, which would have come with it if it's a factory PC? If so go into Settings > Accounts > Access Work & School, find the school account, right click to Disconnect, then Remove, to see if you get your personal account back without school interference.
Did this PC come from the factory with Windows Home preinstalled, which has the license embedded in the BIOS chip on motherboard?
Or was it a school PC to begin with and has only an Education license - which you can check in Settings > System > Activation?
Based on the results and answers you post back I will have other suggestions.