It is hard, but keep trying. Set a couple goals for your self each day, such as: say hello to 5 people in your dorm. Be brave and sit with one person sitting alone at lunch. Ask the person sitting at a neighboring desk what they thought of last nights homework, what they think of the class. Join a club. Last, smile at everyone you meet and pass during the day. No one wants to be friends with someone who appears grumpy. Good luck!