It sounds to me like you are already preparing yourself for the possibility of your bf going to jail. It seems like you have many things lined up to partake in to keep you busy which will surely help the time pass more quickly and easily for you.
About the only other thing I can think of is to try hard not to worry or become stuck in the sadness of the time you will be apart. There is nothing you can possibly do to change what the outcome will be and perseverating on any "what ifs' or "if only's" will make things harder for you. Try concentrating on the future when he gets out....the plans you can make, what he can do to not get into this same position again, how you can both help him to get and stay sober, what your dreams are for each other, etc etc. One always needs hope in order to keep moving forward and making changes.
I'm glad you have a T to run things by and to be there for you when you need them. My intuition tells me you are going to be fine ((((((( Junerain ))))))), just keep doing the positive things you need to do and it will all come together for you!
Be well

sabby