Trying to conceive after stillborn.

So on September 30th of this year we gave birth to a beautiful little baby girl. She was a stillborn. She had trisomy 21 (down syndrome). She had a problem with her heart and it just stopped. We are completely devastated. We miss her so much everyday. I will always remember and love her with all of my heart and soul. But here recently we have decided to try again. And I want to try again, but I am so scared. I want another baby, but i don't know if i could ever be able to deal with another stillborn. So i guess I'm asking if any of you might have any advice for me