Youtube, Quickest way to start earn money

Years ago We only uploads and watch.

Yes, At first , youtube is just a video sharing website. They struggle their own funds, and try to keep survive. Until then, google bought them and everything changed. Today, lots of possibilities they give to us.  
Monetizing YouTube videos is actually very straightforward, primarily because the options for doing so are very limited (for now at least). YouTube content creators really have no choice but to monetize through the YouTube Partner Program, which is essentially Google Adsense for video content.

For now, YouTube content creators channels don’t have the option to sell their own video ads on their videos. As we’ll discuss more below, there is really only one decision to make: whether or not you want to allow specific types of ads to appear in your videos. From there, the strategy for increasing revenue becomes pretty simple: get more views of your videos.

Becoming a YouTube Partner

In order to have ads appear within your YouTube videos and start generating revenue, you’ll need to join the YouTube Partner Program. In addition to allowing for monetization via ads, this will unlock some useful tools as well (such as annotations within your videos). If you reach the point where your videos have logged 15,000 watch hours over a three-month period, you will get access to technical and strategic YouTube resources such as the YouTube Space program. (For a 60-second video, this translates into about 5,000 views a month.)
In order to most efficiently monetize your YouTube videos, you’ll want to have a YouTube Channel set up to keep everything you’re producing organized in one place. Once that channel is up and running, kicking off monetization is pretty easy. From the YouTube Partners page, click on the relevant link under the “Monetize your videos” section:
From there, you’ll have to agree to some terms of service and then will be given the option to select which type of ad formats will appear within your videos:

There are a couple points worth highlighting here:
  1. Publishers have the option to choose what types of ads will appear on their videos. If you’re interested in maximizing complete views and giving the best possible user experience, you may want to de-select the TrueView in-stream ads (these are the full screen video ads that let you skip through after a few seconds).
  2. Ads with product placements in them aren’t allowed under the terms of service. In other words, you can’t run YouTube videos that have ads already built into them.
Once you’ve gone through this process, you should see ads appearing on your videos almost immediately. The last step to get paid is to connect your YouTube account to an AdSense account (or set one up if you don’t already have one).
On a YouTube video page, ads can appear in two different forms (videos or standard banners) in three different places. Video ads (similar to TV commercials) will appear as “pre-roll” before the video starts playing:

Traditional banner ads also appear on many video pages. These generally come in the form of a 480×70 ad within the video player (#2 below) or a standard 300×250 rectangle in the top right of the page (#3 below):

The YouTube dashboard features an Analytics section that will summarize your earnings. Again, monetized YouTube accounts must be associated with an AdSense account in order to receive payment. All earnings are remitted through Google AdSense.
Well this tutorial is mainly based on articles from Here and adjusted with my own experience. And now its your time to start yours