A person can definitely have more than one identity. For example, I have a certain identity as a camp counselor at Camp Laurel. There, I'm a lifeguard, I have a lot of experience working with kids, and I'm looked up to by the campers. Here at Southern, I'm a student, I'm a member of Delta Phi Epsilon, and I earn pretty good grades. These two identities don't often overlap in my day-to-day life, so I would consider them two separate identities, even though they're both a part of me. In this sense, these identities are formed by the people I'm surrounded by in these environments. However, it could also be argued that since I identify with each of these aspects individually, they come together to make up one singular identity. Ultimately, the choice of how to identify is up to the individual.