Hi. With regards her coming on heat you will have to speak to your vet. I suggest having her sterilised as soon as possible.
With regards her excitement with other dogs, this is perfectly natural with a dog of her age. She needs to have as much exposure to other dogs as possible. maybe even send her to daycare where she can spend the day playing with other dogs. With people you need to tell them to completely ignore her and only give her attention when she is calm. She should soon realise that it is much better to be calm as this gets her so much more attention.
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