L'm going to Italy next year?

Two of my friends and I are going with school to Italy for ten days next year. I'm trying to learn fluent Italian (it's actually coming along really well!). I want to know the best restaurants in: Venice, Florence, Orvieto, Capri, Rome, the Vatican area, and Sorrento. We want to go somewhere that isn't crowded with tourists but isn't hard to access from the main streets of the city, and is safe for three sixteen year old girls to be going, maybe with a couple of other people. What would you recomend. Oh, and where would you go shopping. Nothing too expensive, but good quality. Thanks so much!!
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Yikes, typo in the title. I meant I'm