I am surprised you feel like your body parts are "missing" as they were internal and you are beyond child-bearing years. I did not feel that way with my hysterectomy.
But after my bilateral mastectomy, I felt that way very much. I was used to my breasts protruding and the way my upper arms brushed against them all the time.
I guess the best thing to do is to forgo thinking about the negatives, but to focus on the positives instead--? You are free of cancerous parts! That's important! AND--just as I am MORE than just my breasts, YOU are MORE than your reproductive organs. I'm sure your friends and family are GLAD you are here, even though you no longer have those parts! Give yourself time and it will probably feel better. Good luck, we'll be thinking of you.