Vic, sorry to hear your lining is not looking optimal.

Beau, it doesn't get easier or harder, it just changes. In some ways it's easier because you start to expect the disappointment and protect yourself, as N2L said. In other ways it's harder because you start to lose hope. Whether it's your first or your tenth, it hurts. I spent most of yesterday crying, but not because of this one BFN, but for all the BFNs and the fear that we'll never see another BFP... I also agree with N2L that planning your next cycle helps to put the unsuccessful one behind you.
As for the FETs, we've only done 2. We thawed a total of 3 embies (all we ever had to freeze from 5 fresh cycles) and 2 survived (1 for each FET). How many survive often depends on the freezing method - vitrification has a higher thaw survival rate than the slow-freeze method. All of our embies were frozen with the slow method as our clinic only uses vitrification for blasts (and ours were frozen day 2 or 3).