ITs ok Arnold. You are just at the begining of this road.
You do need to go through all the stages of grief, as if you had a loved on die. Sometimes it will seem overwhelming, and like way to much. But as time goes on you notice that the feelings aren't as intense, or last as long.
Ways to help you through the emotions, exercise, when anxiety is ramping up, go for a brisk walk or run. When you are overwhelming sad, allow yourself to cry, try journalling, getting the feelings out on paper.
Lastly if you feel like your feelings are out of control, and that you can't reign it in, then you should probably talk to your Dr. Many of us have a real response to this that ends up with real chemical changes in our bodies and brains, and antidepressant meds and antianxiety meds are needed to start navigating this shit storm.
I knew I needed something to help me, when I was only sleeping about 3 hours every 3rd night. For me getting real solid sleep was key, if I wasn't getting that, I was so emotionally out of whack it was awful. So I took ativan to help me sleep, and then had it for the times when my emotions got really ramped up, and I couldn't pull it back.
Most importantly know that what you are going through is normal, and if you H isn't being understanding of this, then too bad. He created this mess, he has to suck it up, put on his man boots, and help you through this.