Wunderbar! Good for you for taking time away and finding what works for you! Having withdrawn myself under similar circumstances and going back, the transition back into the same school was anxiety provoking but when I got there, people were very supportive. There were some things I had to be careful of, to not trigger old routines and habits, so to be mindful of this but is easy to avoid just by creating new things to do and new habits. You've had time to already establish some of these things and will be easier to continue and to avoid. It helped to have a plan in place and people to call for support for things I knew that might trigger me, just to be prepared. It will, however, go MUCH smoother than you think. Take things moment by moment and enjoy being back. Wishing you all the best!! Viel Glueck!
PS Once again I can't remember where the umlaut is on the keyboard, hopeless, sorry.