How do you deal?

Just wondering how others are dealing with trouble conceiving. It has been about a year and a half since my husband and I have started trying and it seems like everyone else in my life is getting pregnant without even trying.  Just starting to really depress me, even when I try to put it out of my mind and think it will happen when it's right. I want so badly to be a mom, and I know we haven't been trying as long as others, I still get this hopeless feeling that maybe I will never experience it.