Alprazolam Medication Usage?

Hello to all! I am 23 years old and I was having serious trouble concentrating as my exams were nearing. I was in a state of anxiety and restlessness. I was not able to eat anything thinking that I would surely fail in my exams. My mother obviously couldn’t see my such condition so she sent me to the doctor who prescribed me alprazolam 0.25mg as once daily dosing medication. It provided me immediate relief. I want to know about alprazolam medication usage in different conditions and its side effects?