It was my mistake 2 years ago when I first started investing in crypto assets. Then altcoins grew actively and faster than bitcoin and I was sure that it is necessary to invest in them to earn more money. but the last year showed that if I invested only in bitcoin, I would now earn more. Altcoins are very unpredictable , you can earn 1000%, and then, if you don't sell in time, you get a loss of 2000%.