Is there a video that will tell me how to set up our own server as if I were 5 years old?

I am not a computer engineer or a software developer. I have never set up a server in my life. I want to set up a server on my old computer by watching videos and doing the same things that were done. Is there a video that will tell me how to set up our own server as if I were 5 years old? Edit: To host my own lemmy account