First you have to see your strengths , then you have make videos on it. As per an example if you good at cooking meals then you must make cooking videos
How to make videos ?
There are lots of Video editing software , I can recommended to you YouTube movie maker , you can upgrade it by buying the full version.
Adobe premiere also good one.
Recently YouTube added a condition to YouTube monetization application. before you apply for a YouTube adsence ,
- You channel need at least 1000 subscribers
- Minimum Play time also
Therefore you should be pro, you have to upload videos daily , at least 8 videos per day to get passed the YouTube application.
Some earning 1 Million USD per month using youtube , so we also can. Lets do it.
You can see how youtubers earn , you simply visit the socialblade .com and enter the youtube channel addrss then you can see how there youtube earnings, subscribers,video playh time etc.