How to use Celo?

Can you please provide a step-by-step guide on how to effectively use Celo? I'm particularly interested in knowing how to set up a wallet, make transactions, and understand the unique features that Celo offers. Additionally, I'd like to know about the security measures in place to protect my funds and any potential fees or limitations that I should be aware of. I'm excited to explore the world of Celo and would appreciate your insights.