All branches of Buddhism fall under Mahayana and Hinayana. There is no third vehicle (yana). To be a Hinayana practitioner, the first requisite is having unshakable renunciation—complete distaste for worldly fulfillments and whole-hearted pursuit of liberation from samsara. Do we have such resolution? If not, we would not qualify as Hinayana practitioners.
~ Depicted from THE RIGHT VIEW - The Three Supreme Methods—the ultimate methods of cultivating virtue and training the mind