For me, mining became a very promising project in 2021, then I really wanted to invest almost all my funds to buy video cards for Ethereum mining, but while I was thinking, Ethereum became unavailable for mining because it switched to the proof-of-stake system, and therefore I left this idea for a while time. But now I again have the desire to buy bitcoin mining chips, although the price is already much higher than 2 years ago. But I hope that I will finally start and master this field.