Puppy Help

A couple of months ago I got myself a puppy. She has just turned 6 months old. Unlike most other puppies her age, she is massive. To be expected with a Scottish Deerhound though

She has this annoying habit of deciding to bug the shit out of you. She starts by trying to grab your arms, legs or ears with her mouth. If you pull away she then smacks you with her stupidly large paws and then starts barking at you. She has realised we can hide our arms from getting chewed (she still goes for your ears though) and has now started using her front teeth to nip at you. It's all gentle and playful but she is a very large dog and she can catch you sometimes just enough to hurt.

I've been told to ignore her barking and chewing as she is just wanting attention but when you have a 3ft puppy, who thinks she is a lap dog, bearing down on you, it's pretty hard to ignore. Puppies barking and wanting to play is totally normal but does anyone know a way to make her stop without hitting her? I need some good training techniques. I've had dogs all my life but never had a puppy so my dog knowledge seems as useless as stephen hawkings playing twister

Any advice is mucho appreciated