Sorry to read about your big loss Op. 150$K is a big money and i hpe you can recover soon.
In fact, you are not the only one who think that cryptocurrncies are the fatest ways to get richer. This brought the whole cyptocurrency concept to be not more than an investment opportunity because of the wild price swings. And all those trading techniques are made by/for greeds who believe in easy money.
Some think that cryptocurrencies are just an instrument for trading and have no value in real. Honestly, i partially agree with this opinion.
It all started with discovering the futures market. High leverages!
That sounded interesting: Earn at high more than 10x more.
Even trading without leverage is risky, people especially new traders are losing daily, if to talk of leverage, the risk of losing is more, more people lose than gain in trading, then going for leverage trading will amplify the loss making losses to be greater in shorter time. For beginners, it is not good to trade at all, patience for months of learning, then months of experience with very low amount of money to start.
I wouldn't suggest "Trading Cryptocurrencies" to anybody.
Simple, we shouldn't encourage a non-productive activity