How do i get in shape?

ok, so i really wana get in shape for summer, i mean, im not fat or anything, i just want a really good body, i get helllllla self concious even though i am skinny. but what will really work me? like i was looking at kickboxing lessons, but id want it to be private, or just things you can do without having a cl or lessons. just anything to get me in shape! im probably gonna get into hip hop dancing in a little, but i want something else to do. theres a couple months more till summer and i want a nice body by then!! please help! and if u kno of any places in san jose, ca then let me kno everything please! :) oh! and also i wana start eating healthy too, so any suggestions on that juz let me kno