I have 1yr old and she just went into heat about 4months ago and is already in heat again is it safe to start breeding her or should I wait. Also can I buy the shots for the puppies some where because the pet store does not sell it and the needles to do so. And is there any spacific diet I should start her on to make shure that she is as healthy as possibly

You are way too low on the learning curve to be breeding her. You need the answers to hundreds of questions you don't even know exist. A good place to start is Articles