Teaching a Dog Not to Bite?

I have a Labradoodle called Poppy, she is just over a year old, about 13 and a half months When I bought her she was very obedient and learned commands quickly, but she never learned to stop biting.

When she was younger she would only nibble you, but now she has adult teeth it hurts more and she is more aggressive. When she was young we never let her get away with biting, we always told her no. To try and train her to stop we have:

• Shouted at her - that made her go crazy and made her think you were playing.
• Told her of in a calm voice - when she was younger it helped, sort of, but now she doesn't listen.
• Sprayed her with a bottle of water - but that didn't help because she thought it was fun and kept stealing the bottle out your hands and tried to drink it all.
• Put her in her cage - she just barks and when you finally let her out she still wants to bite you.
• Taken her on a walk and let her off in the woods/field and thrown toys for her. She sleeps when you bring her back, but while you're on the walk she still jumps up and snaps at your face.
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• Let her outside - usually if she's been really bad and you let her out in the back garden she runs round and round then does a poop, but if she doesn't need one she will just bark to come back inside and the neighbors just complain. And when she comes back in she still bites.
• Hold her mouth shut - when you let go she snaps to get your fingers and if you pull them away quickly she thinks you're scared so she thinks she can keep doing it.

Besides the biting she can: Sit, stay, paw, and lie down. She does also still pull on her lead we do want to get her to dog lessons, but when my mum gets back from work it's too late, my dad wouldn't come because he didn't want a dog and says it's nothing to so with him, and weekends are tricky because we have all the cleaning and food shopping.

It would be helpful if somebody could help us out with ideas to stop her biting. Any feedback would be helpful, so don't worry if you don't know if it will work, we will try it anyway.

By alice clarke from Yorkshire