How to buy GTAI?

Could you please elaborate on the steps required to purchase GTAI tokens? I'm particularly interested in understanding the process from start to finish, including where to find reliable exchanges or platforms that support GTAI trading. Additionally, I'd like to know if there are any specific requirements or verifications I need to complete before making a purchase. Finally, is there a recommended amount to invest in GTAI, or should I consider factors such as my risk tolerance and investment goals before deciding on an amount?