if there are people who invest in cryptocurrency then they should be able to implement long-term investments because if only making short-term investments it will make them difficult to make a profit, and mental investors must also be strong so it is not easy to be affected by bad news that makes coin prices fall because if you invest in a coin like bitcoin then the price can recover.
for the past two years, I have left long-term investments by selling BTC and switching to daily trading. I still earn the daily trades that I get. it's not too bad for me even better than just waiting for my assets to increase for a long time. now I have started to wait for BTC to rise and I think not for the long term. maybe until the end of this year or early next year.
One of the most important things for a trader to do is to identify in which kind of market we are, 2018 was a terrible year to be an investor or a holder and you could have been better by just staying on the sidelines or shorting bitcoin, but 2019 was a good year for holders and investors, and for what I can see it seems that this year it is going to be good as well for investors, we only need to be patient and hold our coins no matter what happens before the halving.