I've been out of undergraduate for several years and am applying to graduate school. However, I'm hung up on how to obtain the required letters of recommendation.
While I did exceptionally well in undergraduate, I am pretty introverted and I graduated awhile ago. I didn't cultivate deep, long-lasting relationships with any of my professors.
Since graduation, I have worked exclusively with individuals who speak minimal English and come from cultures where letters of recommendation do not exist besides, and with people who are living with extreme mental disabilities. In both of these professions, I have been my own supervisor.
Frankly, I am feeling very up the creek without a paddle. I don't know where I would be able to get one letter, let alone multiple. Is it possible to apply for graduate school without letters of recommendation? How do you go about compensating for this?