To start learning DeFi, read articles and whitepapers about the various DeFi applications and platforms out there. You can also participate in online communities and forums to learn from other DeFi enthusiasts and experts. Additionally, you can experiment with DeFi applications using small amounts of cryptocurrency to understand better how they work. There are also various courses and tutorials available online that can teach you about DeFi and how to use specific DeFi applications. It’s essential to do your research and only invest what you can afford to lose, as DeFi is still a relatively new and experimental space.