I have not gone through a divorce, but I have plenty of experience standing on the sidelines watching over the last 30 years.
There has been some valuable advice given relating to positive thinking, karma, healing, etc.
It has to be extremely rough (or you wouldn't even posted in here) to find the positives to focus on, but know that the spirit is similar to the physical body in many ways. An injured spirit can, and does, cause physical manifestations. It's easy to take some aspirin for aches and pains, or something to ease an upset stomach, but very difficult at times working to heal your spirit.
A bad cut on your body will have acute pain when it first occurs. You may get emotionally sick looking at the fresh wound. It will hurt some more when the doc gives you the shots to dampen the pain as the wound is stitched up. There may be some dull pain that pops up out of nowhere while the wound is healing, but it is nowhere close to the pain of the initial trauma.
Eventually, you notice that the pain has gone away. The wound has healed over. There may be scar tissue there that reminds you of what happened, but know that the scarred area is now actually much stronger at protecting you than before the injury.
I believe the same thing occurs with your spirit. When the injury first happened it was painful and made you queasy.
Don't pick at the wound... get help to heal and eventually you will be stronger than you were ever were before.
Wishing the best to you and your boys.
This career is not a sprint, it is a marathon.