Here is a running list of resources that you can use to learn more about Defi. As with many things in life, don't blindly go follow advice from random people on the internet. Do your own research.
The DEFI Pulse - Defi List
An awesome list of protocols, wallets, analytics tools, and a lot more...everything you'll need to get started in DeFi.
This is an awesome website that tracks TVL (total value locked) in DeFi across multiple blockchains. It's also a great way to learn about new protocols, Dexes, and yield opportunities.
A great youtube channel that has a lot of beginner tutorials and interviews with people in the space.
A running list of great beginner tutorials.
Safety ratings for DeFi applications. Each protocol is given a % score based on how closely they follow process + quality best practices.
Youtuber who focuses on DeFi yield farming strategies with a focus on stablecoins.
The Ethereum blockchain explorer, use this to track the status of transactions.
ETH Gas Price forecasting system
DeFi Pulse Farmer
Newsletter that covers all thinks yield farming.
Etherscan but for transactions on the polygon network.