How do I withdraw money from DeFi?

Hello there, I'm curious about withdrawing money from DeFi platforms. Can you please guide me through the process? I've heard about the concept of DeFi and how it allows users to earn interest on their digital assets, but I'm unsure about how to withdraw my funds once I'm ready to cash out. What are the steps I need to take, and are there any fees or restrictions I should be aware of? I appreciate your help in navigating this process.