I'm retired now but I experienced the sort of pressure you are under as I worked until a year ago. I loved my job and did not want to give it up but it was becoming impossible for me to keep all the balls in the air. My other half, who had taken early retirement, was happy at first at home doing DIY projects and a new hobby of wildlife photography. But he began to phone me constantly at work to check about simple things and would be waiting at the window, sometimes at the front gate for me to get home. At that stage I had no idea that he was showing early signs of Alzheimers and felt guilty for leaving him bored at home so much.
Eventually it became impossible to leave him on his own, but although there is a large concerned family, I got hardly any help and still do not. He does not recognise his diagnosis or that there is anything wrong with him at all. When family visit, he puts on a huge show with lots of banter, jokes and affectionate behaviour. When they've gone, he's exhausted and crashes into bed for several hours and the tiredness makes him more confused when he wakes up. They say things like "Dad was on good form today" and "We thought that Dad still has a lot of banter". They absolutely have no idea what our life is really like.
His consultant referred me to Admiral Nurses because of the difficulties caused by his lack of self-recognition and I have been given a dedicated nurse, but I think things are going to have to get a lot worse before I can really call on her for help. My partner is unable to acknowledge his problems so would not accept a visit from her at present. But it is a comfort to me to know that I do have someone who I can call on for advice or help if I should ever need it which I know will happen one day in the future.
If you don't have something like this in place already, perhaps it might be possible for your consultant or GP to arrange a similar referral for you.
Last, but by no means least, I am finding that this forum is a tremendous help and support with lovely thoughtful people.. Whatever your problem or question on here, you are never alone.