Sadie won't ever listen to me! When I give her a obedience command, I have to say it over and over again! When I say sit, she sits, (sometimes), when I say lay down, I have to say it once or twice, and when I say heel, she does it most of the time, and when I say stand, she won't do it at all unless I put my hand on her belly, and kinda lift her up, and I tell her to drop, she just sits there! Sometimes she's so bad, I cry! I thought Labs where the smartest dogs, and they are, as a lot of other breeds are. Could someone please help me with this? Is it me, or her?

LabLover