"Big willing" is not correct English, the word you're looking for is "desire", and so you should say "strong desire". "Such as" is correct English, but it's more formal and we usually say "like" when we talk about people we look up to. So, this would be better: "So, I have a strong desire to become a popular businessman like Jordan Belfort". Also, I'd just like to comment on "popular", which just means you're well-known and people like you. It's not the same as successful, which, as a businessman, means you make lots of money.

I want/aim/aspire to be as 'popular in'/'good at' business as Jordan Belfort. Regards, Anni

You could say: "So, I really want to become a popular businessman like Jordan Belfort." or you could also say: "I would really like to become a popular businessman like Jordan Belfort." The "such as" that you used is technically correct, but sounds a little odd in less formal speech.

It's not me who wants to like him))

More than anything, I want to be the next Jordan Belfort. (if your audience knows who Jordan Belfort is.) My ultimate goal is to be a successful business tycoon like Jordan Belfort. ------------ I just looked up Jordan Belfort. You do know that he's a criminal? Hopefully, you don't really want to be like him and you'd rather be like... someone who isn't evil.