well done to you both,shes doing great sleeping 12-6. as for spoiling a baby,they need lots of hugs and to know you are there she needs to feel safe,but if i was you both try not to pick her up as much as you do,if she starts to cry and shes been fed and changed jjust talk to her for abit then if she sounds as if shes getting upset then pick her up,i did the same as you are and i wish i didnt,my 2yr old now wont leave my side and crys if i leave the room,its hard though isnt it you love them so much all you want to do is cuddle them.