Mary, you have a right to feel as you do. It has only been less then a month for you. My daughter came over yesterday and burst into tears as it was Father's Day and she had so memories of her past Father's Days with her Dad.
And it has been six months for us.
I notice that the grief doesn't go away, but we learn to live with it in our own way. At least that's the way it is in our family. For me, each time I cry I think of it as an honor to his memory. Then it passes and I am able to move on.
Another thing that helps me is to write down what I'm thinking - sometimes long epistles, and then shred it up so no one sees it. It's amazing how this helps.
Just want you to know you are not alone with these feelings. I wish you the best!
Cyndy