Thanks JMom and Newstart for your support. (I haven't worked out the quote function on this new look board yet, so will respond to you both below!)
JMom, I know you are right about needing to focus on ME not hime and this morning I feel a little bit better. I know there will be people reading this thinking that this seems like a small issue compared to what others are going through - and they are right! I'd much rather be where I am right now than how things were when Difficult Child lived with me. I think the "what ifs" are a mild form of PTSD. I always come back to the same thing - I need to talk about this stuff. I really should be seeing a therapist but the pandemic restrictions have made that hard. So, in the meantime I pour my heart out here, which does help. Thanks so much for your kind response. You are so generous with your time and wisdom. I truly appreciate it.
NewStart, you know exactly how I feel. I'm sorry you find yourself in this place too, but I am so glad we have each other. It helps to make me feel less "crazy" when I know there are others in my situation who feel the same way. I see from your signature your daughter is showing some improvement. I pray that this continues. xxx