How to purchase ocean protocol?

Excuse me, could you kindly explain the process of purchasing Ocean Protocol tokens in simple terms? I'm new to the world of cryptocurrencies and would appreciate a step-by-step guide. Are there any prerequisites I need to fulfill before making the purchase? And where exactly can I buy them? Also, could you provide some insight into the potential risks and considerations I should keep in mind while investing in Ocean Protocol? Thank you in advance for your assistance.