My video got 5,748,734 views in 4 weeks but how can i earned ?

Yip, a palace full of "experts" that's for sure...

Here's what you do, OP . . .

The first thing this: I'm working under the assumption that your video falls within the Youtube TOS. The second thing: even if it does fall within TOS, ranking for an adult term generally means your video has a short life expectancy. And given the latter, you need to quickly set about capturing leads before (well, if) the video is pulled or flagged into nonexistence. You want a relevant squeeze page to capture opt-ins and on your type of traffic (at a guess, based on the little I know about your video) the general setup looks like this:

Link in Video Description > Squeeze > PPL Monetized Thank You > Follow-Up Series of Automated Emails

In a nutshell, then: think of a way to entice subscribers, create a squeeze page, plonk the link in your video's description field, monetize the thank you page with relevant PPL offers, and setup an automated follow-up series of emails that you also monetize. If you actually make a habit of doing that and ranking well with those kind of views, you'll be making more money than most other online marketers.

- Tom

You might also want to include caption that drives viewers to your website or squeeze page if any as well as a clickable title. Not a lot of direct monetization with YouTube videos save from adsense and some form of ads but you can use the video as a channel to entice viewers to go to where your money is.