How do I pay with Cardano?

How do I make payments using Cardano? Could you please guide me through the process? I'm interested in understanding the steps involved in making a purchase or sending funds with this cryptocurrency. Is there a specific wallet or platform that I need to use? Are there any fees associated with transactions? And how does the security of these transactions work? I'd also like to know if there are any limits or restrictions I should be aware of when paying with Cardano. Thank you for your assistance in clarifying this for me.