Flat-coated Retriever Puppy Wanted

I'm 12 years old and I dont like my home because I live by people I am afraid they will try to take me. I wont a puppy that is the age between 5 and 10 months old. The puppy must be in the price range below $100. The puppy must be a female, potty traind (if the puppy is not I acn train it, low temper,very active, loveable, and much much more. I need one so bad because I am not safe in subdivion and I stay in my house all day and do nothing but with a very protective dog I can get out and injoy the world I live in.