There is a lot of work to be done before you separate out of military service. It not only marks the ending of a career, but likely a complete uprooting of your life and drastic modification to your lifestyle.
First off, find your separation date. If you will not be allowed to reenlist you may have one-two years to prepare for your ETS. This will allow you to be well prepared for transition to civilian life. JAG and your local REUP NCO can help you identify the benefits you will be entitled to according to the type of discharge you are being separated under.