I feel like a nervous hen!

18 days ago I picked these beauties up at our 4-H office. 12 fertilized eggs. This my first time doing ANYTHING like this. I was sooo stinkin' worried I would mess something up. The temp has to be at least 100.00 and humidity at 60%. But OH this incubator we have is super temperamental. Seriously, how does a mama hen keep the humidity at 60%?!?! We candled them this morning and 5 out of the 12 made it. I'm OK with that, I was so concerned none of them would make it. So any day now we will hopefully have 5 baby chicks!! As for now I will pace by my incubator...ringing my hands.