1. Before registration, you need to prepare the following information: name * email * password * date of birth * mobile phone number
2. Enter the URL www.youtube.com in your browser and click the login button in the upper right corner.
3. Page jump, the following page will appear, click more options, choose to create account.
4. Then fill in the corresponding information according to the prompts and click Next.
5. After filling in the information, click Register, and the page will appear after jumping to the privacy policy. After reading it in detail, click "I agree".
BTW, if you come across some YouTube playback error. You can also check this article where I found this solution to YouTube playback errors.