How do I buy Bitcoin Cash from BCH?

Excuse me, could you please clarify the process of purchasing Bitcoin Cash from BCH? I'm interested in investing in cryptocurrencies but I'm still a bit unclear on the specifics. Could you guide me through the steps, perhaps starting with setting up a wallet and then explaining how to actually make the purchase? Also, would you recommend any specific platforms or exchanges for this purpose? I'd appreciate any advice you could give on this matter.