ttc 5 months and so ready to give up already

I know some people have been ttc for 10 + years and I'm just so scared I'll end up like that with my son I got pregnant just within 3 months and now it's seems like it will never happen and everyone around me knows how bad I want another baby especially since my son wound up getting taken and adopted but I'm trying to move on with my life since there is nothing I can change about that😔😔😔 my wife will be giving birth to our son soon but I still wanna be able to bring a baby into this family this is gonna be her second child and it feels like I'm never gonna be able to bring a child into this family😔😔💔💔 I've tried opks but I seem to never get it on time I've tried temping but I never wake up on time or end up having to pee so bad that I can't wait I just don't know anymore maybe god doesn't think I'm mother material 😢💔😔