Many non-minority faculty are excellent mentors, who can listen to and appreciate the issues of an ethnic person. Consider which issues you can discuss and work toward a trusting relationship. Some minority students advise that not all faculty of color are automatically perfect matches so avoid relying upon a single mentor. Psychologists in practice or community agencies are resources. Regional psychology conferences are often great places to network.
Myths are myths.
The last highlights another potential solution, peers as mentors. Advanced students have accumulated wisdom that can be of enormous value. Some students establish social-political organizations across campuses, which serve to prevent isolation, provide social support, or increase influence. Whatever your career choice, maintaining happiness will be crucial. Keep focused on your goals, know what is important to you.