Where do I start in terms of learning about trading? Suggested online courses

So I barely know anything about trading, crypto etc. I joined Bybit and Binance like a year ago and I invested in USDT and Crypto currency bc I'm the type to learn on the job but I didn't really put much time into it. As a newbie where do I start? Can someone suggest some online courses for newbies or just give me some pointers on the best way to start learning? Thank you in advance