I enlisted in the airforce last tuesday and i wanted to know if i can change my job im in the DEP program.?

last tuesday i enlisted and im in the dep program, I selected secruity apperentice but i deceided that i would rather go with Information Management Apprentice. Is there any way possible for me to change me job? im still a senior in highschool and i graduate june 19 i asked to be shipped anytime after august 1st.