Summer, pick a food plan you can stick with for life. That's the main thing, this isn't temporary is a change in your life style. That's why you need to decide what plan fits you best, one you can easily follow from now on.
I personally do WW and that has worked for me so far. It gives me a lot of freedom, but it also teaches me how to make better food choices.
Whatever you decide, we're all here for you. There is a ton of information on every plan out there.