Hey Gordon, my heart sincerely goes out to you mate
I know how shattering a loss such as yours is. Seriously mate, I know it’s easy for me to say this, and much harder for you to do, but whenever you feel the saddness overwhelming you, and i know this is basically all the time, force yourself to watch an uplifting movie, spend time with friends, family, your dog or other pet(s), go out in the Sun and fresh air. These are things you may not have the least interest in an the moment mate, but force yourself, I know it’s hard, but it will take your mind somewhere else for a little while at least.
I know we don’t know each other from Adam, but my thoughts are with you mate 