TTC baby #2

I had an ectopic and was extremely lucky to get pregnant a few months after surgery. My daughter is now 18 months and we started trying for baby #2 six months ago. I know I'm so lucky to have my daughter but I can't help but think I won't ever be able to have another. I feel broken. I feel like I've lived my life in two week periods. The test , temps, no caffeine , no alcohol and still nothing. I feel like I'm losing myself. I want to give up but I still want to try. Anyone in the same boat?