Your quarrel with your classmates shows that your interpersonal relationship may not be so good in life, so your sense of security is not so strong. Maybe it's because I was stressed and irritable when I was near the college entrance examination, so I quarreled with my classmates.
Find a dog with your mother at home, which means that no matter what happens, your mother is your strong backing. No matter what happens, she will stand by and help you and support you.
Finally, I wish you good grades in the college entrance examination and an ideal university.