All I want to do is cancel

Adobe has me signed up for some trial through my school that I cannot cancel and I think I just signed up for another free trial.

By @Kate35226957smx2

Adobe does not sign up someone for a trial or something else. Users do. Users need to cancel.

If it is really “through your school”, you need to contact your school IT support to cancel that.

If it is an individual subscription (and not, as your wording suggests, a school subscription), you can cancel by yourself. Just go visit https://account.adobe.com/plans and click manage plan for the plan you want to cancel.

If that doesn't work, you will need to contact Adobe customer service. After answering the initial questions, type “agent” to get an Adobe agent on the line. Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. Pop-up blockers need to be disabled, you need to accept cookies! If the chat window fails to open, or is non-responsive, use a different device and/or browser to start the interaction.

For support via Twitter:
https://twitter.com/AdobeCare

(see also here: https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703 or here
https://community.adobe.com/t5/account-payment-plan/how-to-contact-adobe-support/td-p/11843852)

Important: Adobe does NOT contact you unsolicited by e-mail or direct message. If you get contacted by direct message from a person, claiming to be an Adobe employee, look at that profile and check if they bear the “Adobe Employee” marking under their name. Adobe support does not use Skype to give you support.
If in doubt, ask the forum.