Congrats on your baby
As she was young when you got her make sure to get her in puppy class ASAP for puppy socialization.
As long as she is healthy I wouldn't worry about her weight, they are genetically predisposed to reach the weight they will. With good food and care she will do just fine. You can't compare dogs as lines grow different.
My 2 year old CC was 88lbs and 22inches at 8 months when I got her, now she is 23 3/4 inches and 90.3 lbs, while our pup is 6.5 months 74lbs and 24.5 inches, both are kept lean. Depends on the dog
As for the troll, I have nothing against truth and honesty, and maybe you did not get the pup in the best fashion, but you are here to learn. Being insulted and called names is just going to alienate. There are a lot of very helpful ppl on this board, so don't let the one bad apple spoil your experience.
Good luck with your pup and can't wait to see your pictures.
Again why would it be ok for the woodster to insult me but I can't insult him??? You just wait everyone will love me when I dress my pup in sunglasses and a bow tie!