How to buy core with USDT?

Could you please explain the process of purchasing Core tokens using USDT? I'm a bit unfamiliar with the cryptocurrency market and would appreciate a step-by-step guide. Do I need to set up a specific wallet or exchange account? Are there any fees involved in the transaction? Additionally, could you also provide some insights on the potential risks associated with this type of investment? I'd like to make an informed decision before proceeding. Thank you in advance for your assistance.