I am sorry for your loss. How heartbreaking.
I lost my DH suddenly in Sept 2021. He passed in his sleep with no known health issues. However, looking back, I know he had heart issues and I had been telling him to see the doctor. He refused saying he was just getting older and he was not going down the road of tests and doctors. That decision cost him his life, and our family lost a Dad, Grandpa, and my beloved DH.
It is a hard journey to go through and not one that anyone wants to take. You have many things to grieve for. Everyone grieves on their own timeline and don't let anyone tell you when you should be over it. It is up to you. I have people try to tell me that I should be good now and are puzzled that I am not. Grief is not something our society does well. There are alot of emotions. Don't feel guilty about laughing with friends or enjoying something you like. Do what takes care of you at the time. I sometimes feel like if I laugh with friends or am happy with one of my grandkids that it means I am not missing DH enough. But, that is not true. His loss is such a heartache for me after 45 years of marriage that some days I feel like I can't get through the day. I could not stay in the house after finding him gone there that morning so I am staying with my older DS. I just sold my house and bought a condo so I will moving into my own place and living alone for the first time. That will be an adjustment.
It is good that you are seeing a therapist. Be sure to take care of yourself. That is easier said than done but important. Talk with friends and family who are supportive. If you find someone who is not do not feel bad about taking a step back from them for a while. I have had to do that with a couple of people. Cry, yell, throw things, do whatever you want to do at the moment you are in. I read a book recommended by my therapist called It's OK that you are not OK by Megan Devine. I cried my way through it but I found it very helpful. I have talked with women who have been down this road and they say you never get over it but you find a way to live with it. The grief softens a bit and gets integrated into your life. That is what they say, I am not at that point yet.
Feel free to PM me if you want. I know I have probably missed alot of info but frankly my brain is very much befuddled since losing DH.
My thoughts and prayers are with you.