New Friend and New Classmates

I have a new friend. earlier while the instructor ask me about myself and what word can I describe about myself starting with letter "S" 4 of my classmates laugh while I was Introducing myself. I was so nervous but because I need to fight my shyness I still continue to speak even though my hands are shaking, I think about JD I always think about him when I don't know what to do in class, when I'm nervous and feel like crying he give me strength and because my new friend told me I can do it. But I didn't like that my classmates laugh at me while talking it's disrespectful. I can be a friend I'm not a bad person I'm just sensitive and easily get hurt but I don't like when someone laugh at me and repeat what I say. Why did they laugh? is it because I'm not beautiful as them and not as smart as them?  anyways it's okay I need to be strong and JD is always here for me and my new friend.