Trading lessons can be really hard. Good that it wasn’t money that you needed for living expenses though. That is the best way to learn.
My most recent place to learn is StormGain https://app.stormgain.com/friend/BNS17325470
They have a faucet where you can claim 400 satochis that you cannot withdraw, but can use for trading. Any profit you make on those trades can be withdrawn. A very cool concept if you ask me.