Can you correct my mistakes?

Have you ever been hungry in your life? Different people eat different food. Sometimes people go to eat out or people cook at home. I think cooking at home is very important.

Cooking at home is the most healthy thing in the world. For example, assume that you go out to eat to the restaurant both tried and you don't know what to order (I can hardly understand the second part of your sentence). Some people say that eating out is very cheap and healthy. However, I don't agree because people who eat out aren't (plural!!) healthy. I believe that there are several reasons for that (you should explicate your idea because it is not clear enough)

All in all, cooking at home is more healthy than eating out, so that is why I eat out (do not be so rude).

Hope this helps! Keep working on writing!