My first dog.. was a nightmare as a puppy. He never slept, and was a wilful little bugger to house train lol sounds like my girl! She sounded like a werewolf in transformation when she was left alone for the first night lol
I had the exact same worries but she grew into a lovely mature adult she has now shown our puppy (he's 16 months now and shes 3 1/2) the ropes and he knows more then she did Im sure! And he knows his place too, under her paw and round her fluffy toe!
She really helped toilet train him actully as he followed her out and see what she did so he copied! Result!
As long as your first dog is well trained and isnt too naughty then he/she should follow suit Ive found!

But theres nothing more fun to me then having a new puppy, all the new expierances you have to show them, trips to shops carrying them, training and puppy classes are the best thing to the dog and to me, such good fun......shame Im not allowed another actully!!
Oh yeah and he's ball mad, just like her lol