Oh noo I'm losing money! Sell! Sell! Oh damn! Now it's goin to the moon and I didn't buy it!
The biggest issue I have when I make an investment is dealing with stress. I know how obvious that sounds but this is just what happens. Price fluctuates, I get stressed and I make bad descisions. And that's a problem! I loose my money! So I said to my self, you have got to find a way to keep your mind at peace! Here is what works for me, and may be it can work for you too.
When I decided to invest in Ripple, I split the capital I wanted to invest in a half. I played the first half with the strategy buy and hold and used the second half for trading.
The money I have on buy and hold are all the time invested in Ripple and I never touch them. The money I use for trading instead are almost all the time cash. I try to keep my trading capital cash as much as possible, I buy only at very low price. This way if price goes up I am happy because my money on buy and hold is earning, and when price goes down I can finally buy with my cash ready for trading and make good profit! It feels good whatever happens and my stress level is under control!
Update:
In the last days the price of cryptocurrencies is a real rollercoaster. It can definetly happen to make bad decisions. In this case, I still try to keep my trading capital cash, but I also focus on not losing money. So if it happens that I buy at low price but the price keeps going down.. I still hold. May be I will have to wait for a while, but I strongly believe that the price of criptocurrencies, if we are not talking about 'shitcoins' is going to grow in the long run. That said I don't feel worried about holding a little more, I am sure that in a few days I will get back my money with good interest! Have fun and keep calm! :)