Hello and welcome
@finick from me also to this friendly and supportive forum.
I am sorry to read about your husband's cognitive impairment diagnosis. Becoming a Carer is a tough ask for sure, there's no hiding from that.
Do have a good look around the forums and ask any particular questions you may like to. People here understand and want to help.
You may find information in the following link helpful:
Mild cognitive impairment is when a person starts to have problems with their memory or thinking. It can be a sign of a disease that will eventually cause dementia but MCI is not dementia and can be caused by other health problems.
www.alzheimers.org.uk