I'd like to welcome you here and also am glad you were first met by Sophie who has sensible experienced advice and was able to give you a most suitable link.
I guess the first thing to say is that greif, loss and trauma affect each of us in different ways, and we do not always say what is in our hearts to others. When trying to comfort other we do not know what to say.
You fell the losses very deeply and would wish others seemed the same, perhaps they do, perhaps not.Either way you cannot realy talk to them on the same level.
There is no timetable for PTSD, trauma, grief and loss and absolutely no point in comparing your reactions with anyone else. You are a unique individual, as we all are, and have to try to cope with the hurt and injury inside ourselves as best we can.
If it is of any consolation I was involved in the death of someone in a fire and will never have those images expunged from my brain. Other things too.
It has been a long time and the images and reliving matter are slower, slighter and easier to deal wiht . I've had professional help in hte form of a GP plus psychiatrist and it has made a huge difference. One thing, I take my likely reactions into account all the time, and if I feel something is liable to set them off, even if only to the extent of no sleep, then I avoid them if I can.
That is my recovery, to be able to handle PTSD, depression and ongoing anxiety, not cured, but able to deal with them , take them into account, and seek help if needed.
I often talk over these matters wiht my partner, and the outside perspective really helps.
I have also lost my wife, a long while ago now, and am very familiar with loss. Here the images include good ones.
May I suggest firstly that as you are seeking medical help, a consultation with your GP leading to proper skilled treatment for PTSD, grief and loss. Counseling has it's place but may not be what you need at the moment due to the time elapsed
Secondly try to avoid the trap of reminders in the way of graphic photos, they do not help, they do not harden you to the event, and they simply reinfection what is already in your mind.
You have talked about your family, is there anyone in it, or else perhaps a good friend, you can talk frankly with about your feelings? They only have to listen (with patience as I kept on saying the same things) and care. That's all they have to do but it leaves you feeling less isolated. That helped me.
I'd like to talk again if you'd like