I'm 18, pharyngitis that doesn't seem to go away. swollen taste buds on tongue and tonsil (right) that has sores on it and hurts to swallow ? cancer?

Not cancer, but: you need to have it checked out. You are really too young and symptoms too quick on onset tothink it's cancer. As a young adult female, considerations include strept throat, as well as gonorrhea, mono, or other viral infection such as primary HIV infection if you have been sexually active without using protection recently. In the meantime, try gargling with salt water or use Listerine.