Depends. When you own a website, you need traffic else its of no use. Monetizing a website can be done in various ways, adverts being the most used and profitable too. It takes time but revenue can come rolling in fast if your successful.
lol, check your english guys:))) it is hard to make money, like in any other job. you work, you get paid. you do not work, you do not get paid. as simple as ABC
To earn lots of money is extremely difficult so if your question is how do you make lots of money then I would say, its very hard and you need multiple income streams to make a significant amount