70 percent of stocks are trash.
But regardless, if an investment broker tells someone... "Hey, invest in this stock with us... You have to keep your money for this stock in our portfolio for two years minimum, but we guarantee it'll 10x in that time" and only reason being is because they are paying out the early investors first with new money.. is a ponzi scheme.
I could buy Bitcoin on my own free will on an exchange of my choosing in my own account at $65k today, a freely trade it tomorrow knowing it could be worth $50k or $100k in 24 hours. That's how trading, spot, margin or swing works regardless of what you buy... Crypto, stocks, precious metals, currency, etc.