How do you just give up?

Kacey • Married to my high school sweetheart. Mom to a beautiful baby boy, our angel baby in heaven 👼🏻, and to furry babies. Trying to get our rainbow baby! Military family
My husband and I have been trying to get pregnant with our first child for about 1 1/2 years now and still nothing. It's all we think about. People say to just forget about it, but how do you do that? My husband is in the military and everyone around us has kids! How do I just give up?