Go be of service. WHatever it is, find a purpose. Get involved in something. Animal shelter, homeless shelter, old-folks home, etc. STAY OUT OF YOUR HEAD. Get active in your local church - one that has a lot of activities. Wednesday Bible study.
Don’t self indulge. That is what the enemy wants. In Christ we can walk thru ANYTHING. Other people will let us down. He will not.
Ask your estranged wife what you can do to help her. Do NOT have hate in your heart for her. Pray that she may find the Lord and peace and happiness. She obviously has neither at this moment. Her’s is the sad story here. She is still searching. She is the one who is being tormented.
You will come out better on the other side of this. Peace Brother.
(Also consider rescuing a companion for your Golden. The antics of multiple dogs will bring you cheer, and they will keep each other company while you are out being of service).
See, that's two votes for "another dog."
You’ve encouraged me, brother (or sister). Thanks.