My puppy is 6 months she's a poodle mix and... can anyone help please!?

My dog isn't eating she only like eating OUR food,HUMAN food i bought her some treats they are like sticks of beef jerky she loves that! that's the only thing she'll eat i only give her one stick a day!... i feed her the science hills dog food veterinarian recommended... but she might eat a lil but only if we give it to her in her mouth other than that she wont! what should i do? can anyone one help please! thanks so much for your time!...