Sorry to hear about your confirmed diagnosis. It will be just as confusing from now until treatment, which treatment depends on the TNM grading, tumor, nodes, metstateses, and also tumor thickness. For T-1, T-2 with N0, meaning no nodal involvement, it's surgery of radiation as the first line of treatment. You may or should have a PET/CT, if not already done, which will see if any other areas are involved.
You can, and should start keeping your own file of every test, procedure done. It's useful for information, will save money to get now, and need for other doctors. Even in the same facility, they may not automatically send tests reports to other dictors, and if you go elsewhere for consultation they would need them too. Right now you can get the surgical, and pathology report. Not sure if you had CT scan done, but you can get the report, and disc copy too.
You will me sent to see the ENT, Radiation Oncologist, and possibly others in the multidisciplinary team, at a CCC, as Cheyrl mentioned, if you go to one, and is recommended you do.
Good luck. If you have any questions, ask your doctors, and further information here. You can familiarize yourself with the many terms, treatments with oral, oropharyngeal cancer here at the opening page.
Good luck.