Then please tell me where u shop because everywhere i shop junk food is cheaper than fruits and veggies
What kind of junk food do you mean? I usually think of boxed breakfast cereals vs oatmeal. Per serving, eggs and toast might even be cheaper. Homemade pancakes and waffles are cheaper than the frozen kind, homemade pizza vs frozen. Cakes and cookies are cheaper baked than bought.
What I've noticed from the various "trying to make ends meet" threads is that people are often buying prepared foods like the above instead of ingredients.
Some of this ends up not being practical if you're only feeding one or two. Using pizza as an example, you may spend the same amount buying frozen vs ingredients, but you'll often end up with twice the product. That may not be practical for two people but for a family of 4 or 5, it's better value.