Buffet is on another level. That guy can lose millions in a day and brush it off like he lost $50. Case in point (you can find his portfolio online), He owns 400,000 shares in Coca Cola. He gets $624,000 annually in dividends. He also owns quite a bit of UPS. Buying and holding stocks of quality companies is a proven method of increasing your wealth.
One of the first stocks I bought was Ford, during the financial crisis years back, at $2.87. It dropped more another 50 cents or more, but I sold about 6 years later at almost $17. I turned $1000 into over $7000 including dividends.
Cryptocurrency is largely a fad. And maybe some people have taken advantage of it over the last decade, but it's ultimately going to be regulated and fail. It's lost around 30% of its value this year.
If you've got money to spend $5000 or more, I'd hold tight a couple of months, maybe another year, and you'll be able to get stocks at a discount. We've had the longest bull market in history, and signs are there that it's coming to an end. That's the best time to buy.
I've been in this game ten years now, and I'm averaging over $300 a month in dividends. I mostly stick to my plan and buy one of the 25 stocks or so I own that are undervalued. $100 goes to me or my savings each month. I plan on averaging $500 by the time I'm 40, and by retirement over $1500.