Tfish- sorry for all that you and your kids are going through. You are in good hands and will receive much support here.
Post often and read all the links Cadet sent you. Take care of yourself and your kids.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced