Brought some ETH and LTC about 3 years ago, They were not doing anything, just lying there at vey low price. so sold them, may be had about 50$ profit from both brought some BTC, and look at them now, Had I have them might be worth over $10K now, prff..
and then again, had some BTC brought when it was around 360 - 380$ , and sold them when hit 1000$, another serious issue with decision making. Hated my self for weeks because of that.
Finally brought some BTC when it hits $8K , and now I'm gonna Hold them FOREVER!!!
yes hodl is the best way to keep gain profits. keep your btc