No offense, but it took 5 seconds to type it into Google.
- You need to have 1,000 subscribers on your YouTube channel.
- Your videos have generated 4,000 Watch Time hours over the last 12 months.
- You comply with all of YouTube's policies and guidelines.
- You have an AdSense account set up.
You will not be able to apply for it until June 21st, and even then you have to have 1K subscribers and 4K watch hours. When you break it down means if you post 150 videos, each one of them needs 27 hours of viewing. Which means if you have a 12 minute video, you will have to get a minimum of 135 views with everyone watching every second of the video. But breaking it down, most people break off on the average of 40% of the way through. Meaning you will need around 300-325 views per 12 minute video for over a year. Lastly, even at 1K subscribers, an active, healthy, sub base is 15-20% sub to view ratio. Meaning you will only get about 100 to 125 views per video (if it is a healthy base).
Bottom line, and with all due respect... good luck. Unless you plan on pouring money into this, or you have an extremely unique channel or you have nice big bouncing boobies... (youtube would probably kibosh that anyways) I would estimate a 3 year journey making 2-3 15+ minute videos a week. Roughly 425-450 videos and hope you can sustain 150+ views per video.
Yeah, they don't make it easy. I have 3300K subs and about 8K hours viewage over a year, I have about 1350 videos on my channel. I can apply, but I do not. Once you do, you are no longer free to do what you want, you will be under their thumb.