And you will want very badly to go home. These symptoms reinforce each other. Poor eating habits will make you feel drained and your depression will deepen. You may do poorly in classes, which will lower your self esteem. All of these will contribute to your sense of loneliness.
Many international students experience the same feelings upon their arrival in the United States.
Talk to them about your feelings. Evaluate your expectations. Your reactions to the United States and to Rochester are products both of the way things are here and of the way you expected them to be. If you determine that your expectations were unreasonable, you can do much to reduce the amount of dissatisfaction you feel. Keep an open mind.