I used to be a full time forex trader, now I do the same with crypto and I found that rules are the number one:
Always have a plan - follow, write it down, never make exceptions, I lost a lot when I said this is an exception.. Don't do that.
If you have a plan there is no emotional decision you should make. Like these days, if you have a plan up front, you know exactly what to do.
Cryptocurrency so far is even more complex and even if you have an experience before as a trader, you will still need to get used to some idea in this market first which is why some always like trading it safe at first before even trying to get themselves loaded up for the race.
Recovering loss in any trade, is just as simple as just holding or playing with extra to get some back with the sellout. With that, in a short while you can trade the bottom, while waiting for the other ones to grow.