Is it smart to make a similar website niche to someone else?

[King]

Basically, there's no point doing something someone else who's successful has done, if all you want is success also. Let me put it this way. John starts a food blog and makes a million dollars. You think, well, if John can do that then I can too! But you're not as passionate about the subject of food as John is. You will never be able to become successful doing something you don't like.