Hey we are at the 20 month mark and I also put my life on hold quite a bit so far. I didn't go on a hiking trip last summer because I just "knew" I would be pregnant by then, I've skipped out on several parties (because I didn't want to be around people who were pregnant), I've passed over job opportunities thinking that it would be best... just in case I got pregnant. Well I've come to realize that after 20 months, and 24 cycles of doing just that... waiting and planning and doing everything I can to get pregnant, and putting my life on hold while I'm at it, that I've got nothing to show for it.
I have no idea how long this will take, or if we will ever have a baby. But I'm done putting my life on hold in the meantime. So I've actually just taken the plunge and have applied on a new job! I know we will have to take a break from ttc for a few months if I get it, and I'm okay with that!
I'll say that the thing that has kept me sane, is taking a break every now and then. I'm on a break cycle right now. Its glorious!