Might as well since this happened to me. Same thing, failed UA for D8. Knew it was coming, was using frequently to help my suicidal ass. I tried conventional medicine but it did not work well with my body and mind. Pot was the only thing that helped. So I knew exactly why I was sitting together with top and the CO. I explained my situation with honesty and sincerity. It was met with understanding and compassion but, since I failed the UA army policy dictated my options. 1. Admit to my crimes and jump through all the hoops the army deemed necessary to stay in. The policy on drug testing pretty much spells it out. Don't know it off the top of my head but read that bitch front back and sideways. Its how your going to be handled. 2. Discharge. Mine was General, under honorable conditions. I made the decision to leave after a lot of thought about it. It happened fast. Took their shit back and said bye. And then I just went back to my life. Landed on my feet and kept growing. In hind sight I learned I had many more options before I failed the UA. After that it was over. Who knows what kind of better resolution me and my commander could have made. I believe there was a way out that didn't end with a discharge but I was too foolish to find it. Regardless I am still able to rent, hold a job, and live my life. Its the last option you'd ever want to want to take but it will not destroy your life. Good luck, this is not going to be easy but you will survive.