Chnages are scary, im gonna explode :O

In my country to go to a public colege u have to do a test caled ENEM ''high school national exam'' and u can try as many times u want, last year i didnt pass so im gonna do it again this year and to study for it we have some especific classes caled pré-enem. My pré-enem its gonna be in a different school with a lot of new people and none of my friends will be there, im nervous and quite anxious even knowing that im good with people.