Is this a good diet ?

[boricuamexchulo]

hey whats up? im starting a "diet" today ... im trying to lose weight and i really want to get results.... im 5 10, 190 lbs. 33 w, 18 years old, latino, medium size in shirts. ... my goal is to drop 30lbs or more ...i would say my frame is average i dont look overwieght or at least thats what all of my friends and coworkers say but sometimes i feel like a pig lol.. i used to be lighter like 2 yrs ago but i moved out of my home and my diet changed. anyways heres my diet..
Morning::::breakfast> a cup of strawberry special k and fat free milk and water.
two hours after breakfast> an apple and water.
lunch>a sandwich . wheat bread. two slices of ham, 1 sliced tomato and instead of mayo i use sour cream. sometimes i eat a yogurt (activia) or fruit (apple)
two hours after lunch> another apple and lots of water.
dinner> grilled breast chicken and lettuce , i add a lil bit of lemon and spice it up with some chipotle or jalapeno.
two hourse later> u already knwo an apple and water!
i dont drink soda no more and i do drink a lot of water. im addicted to it.. i also need advice on a workout. so do u think this is a good diet?
ps my last snack is at 8 after 8 i dont eat anything i drink water instead.
so instead of ham what should i eat?