First find a similar site doing what you do. In one prompt, copy and paste their license, terms, and privacy into GPT. Copy your program description and other info (like you want to copyright your text, you want creative common and commercial aspects) into GPT. Tell GPT that you gave it an example license, terms, and privacy but you want the three modified for your particular use case. Press Enter. Modify the results slightly. Profit.

This is what I did.