my dogs become aggressive

I would suggest a professional evaluation to see if the dog is trainable. Stafford terriers are an aggressive breed and need a firm hand to keep them under control. It's possible that your dog can not be socialized and will either have to be kept away from all people and animals or in the worst case - put down. I don't think the fact you got her at 8 months is the problem, it's just in their DNA. A good owner can go a long way in controlling a dogs instincts, but sometimes the dog is beyond help. I personally would not get the breed again and I would never allow one that showed any sign of aggression to go near children or other pets. Are you in the US? If so, you need to speak to your insurance company about special liability insurance for this breed. Good luck.

Wow - my SIL's Pom/poodle mix is the same. Uncontrollable and very agressive male. Also has bad breath - and is just 2 years old.

She refuses to believe that this dog has anything wrong with it. I told her not to let that dog be around young children and she looked at me funny.

Woah! I've rescued 2 Staffordshire Terrier mixes and have researched the breed because of this.

Aggression towards humans is actually very rare in this breed, because dog-fighting was what they were bred for, and humans had to be able to intervene without being bitten. (Dogs who bit handlers were killed.)

Both of my mixes are dog-aggressive, but they adore both cats and people, even children, and are always extra-gentle with them both.

My one mix (Poo's her name) has helped me raise many, many kittens, with a tolerance and gentleness that's extraordinary for any dog.

I've never had a dog that was agressive towards people.

My FIL has 2 Dachsunds that have bitten virtually ALL of their grandchildren... while my large pit-bull mixes have never bitten anyone, or even growled at anyone (even Vets, while in severe pain) so let's not get all freaked out about this breed.

I'm thinking you need professional assistance. Can you possibly afford it? If not, well, there's a lot of good info on the Internet.

Keep us updated, OK?

She's not allowed to display any dominance towards any humans... period!

And if I were you, I'd muzzle her at the vet, every time. They have muzzles now that are soft, allowing the dog to pant but not bite.