How to buy inj on dex?

Could you please elaborate on the steps involved in purchasingINJ tokens on DEX? I'm particularly interested in understanding the prerequisites, such as the necessary wallets or exchanges, as well as the specific process of making the purchase. Additionally, I'd like to know if there are any fees associated with the transaction and how to ensure the security of my funds during the process. Could you also provide any tips or recommendations for beginners who are new to this type of transaction? Thank you for your assistance.