Financial talk

i am on a fixed 400 dollar a month income (after rent, electricity, cell phone, etc...) i used to make a lot more money and now i'm strapped for cash. how do i: 1 buy food that's cheap but still good and how to i shop for healthy stuff 2 buy alcohol for cheap 3 go out every weekend and spend little money but get what i need, alcohol, food, etc... 4 make extra cash if necessary without getting another job