Aggressive behavior in a puppy

Hi everyone,

My (female golden retriever) puppy is 12 weeks old on Tuesday, but I have a question regarding her behaviour.

I have never had a dog before so this is all new to me apologies if it’s a silly question.

I understand that she is still teething, and they naturally want to chew everything, but sometime it comes across very aggressive – for example she recently was chewing the table so I picked her up to move her and she will growl, show her teeth and snap at me, while she’s in the air wriggling and trying to bite.

This has happened a few times and I understand they do a territory thing where they guard their belongings but is this behaviour I am describing normal?

It’s not like nipping or teething on us – she has gotten us both good a couple of times to the point of bleeding and will bite very hard.

It seems to happen when she is hyper more (we can’t take her for walks until Tuesday when she gets her last vaccine) so maybe she just has all this energy that’s she’s putting towards this behaviour?

When she does this aggressive growl and trying to bite us we will direct her to her chew toys, but after 2 seconds of biting it she will come straight for either of us – if this continues we will put her in the kitchen for a few minutes – somtimes this helps but most of the time she will come back and try to bite again.

As I say apologies if this is completely normal behavior for this breed but just wanted to get some opinions as I’m still very new to this.

P.S. we are going to the vets this Tuesday coming for her next vaccines so will talk to the vet then – just wanted some opinions on here for now.

Thanks