Setting a buy or sell p2p ads on crypto exchange is actually not hard, but you just have to understand how it works and the different requirements from each crypto exchanges. Because while some exchange might require you to be a verified member, some might require you to have traded a certain amount on their p2p before you will be eligible to create a Buy or Sell ads.
However, when it comes to Bybit crypto exchange, in other to be able to create ads, I'm not sure if a certain amount is needed to make you eligible. But KYC is very compulsory. And these are the steps you need for follow to create the ads.
First, you will need to head over to the p2p section on the exchange
Second, you click on the ads icon as shown below where the red arrow is pointing 👇 👇

Third, you click on the plus icon as shown above and you will be taken to the next dashboard 👇 👇

Forth, this is where you set up your ads, whether you intend to Buy or Sell, and you will have to select the quantity you intend to buy or sell and the price you are willing to buy or sell your coin, while also selecting your floating price and ratio and click Next to publish the ads as shown below 👇