Poopie. Write a letter asap to the CO, branch and the committee.
Write you appeal and do not agree with the decusion. Important! State why you do not agree.
Are the rules not correctly applied, or do you feel you showed repentance. Etc.
The CO will form an appeal committee and will give you a second chance with a new committee. Be prepaired because the original three will show up. They will not be in a good mood.