Hello
@L Jack and firstly welcome to this friendly and supportive forum. There is a wealth of shared experience of dementia to be found here so I am glad you have found us.
I'm sorry to read about your husband, and on top of your Dad, this is extremely tough for you. I hope you have other support or family to assist you. The gradual deterioration of a loved one is just plain cruel and horrible, I do feel for you. Saying the wrong thing again is quite common - you can never win, seemingly.
The following link may provide some tips to help:
The following piece was posted a while ago on DSF and made a big impression on me. It is something I have referred to time after time and tried hard to follow. We have many new members who may not have seen it before. Yesterday I posted it on another Thread but thought it might be helpful if...
forum.alzheimers.org.uk
People on this forum really do want to help; you'll find understanding, sound advice, and just a listening ear if and when you need to let off a bit of steam. Take care.