Is trading or investing easy? Well, you may think so when you invested $ 1,000 early last year in Bitcoin and didn't look at it until the end of December (and subsequently sold all your coins). But that is all hindsight. Plenty of traders/investors got out after the first 100 % of profit. Some of them got back in after the next 100 % rise, maybe got out when it crashed 20 % (and forgot or didn't dare to get back in).
You can swap the word 'Bitcoin' for Apple shares or any other share of a company which had a good run-up last year.
Or more recently, the stock markets in general, which showed their first hiccup, almost a 10 % correction, just last month. Some investors got a nasty wake-up call, especially those who had money in volatility programs or consistently sold the VIX.
So we have a market which has become more volatile, which can provide great opportunities for a trader. But this also means that as a trader (and as an investor) you really have to know what you are doing.
And serious trading/investing is not easy. The inconvenient truth about successful trading is that it is work.