Besides, beyond all that the OP has stated in respect to risk control and money management is the issue of "Patience" and "Emotional control". I will go with the trader with a 1/5 risk to reward ratio even though the win rate is small. What that means is the trader will b selective of trades to execute and not just be in every trades. The problem with most traders is hey want to be seen trading at all times. That isn't how trading works. One has to choose one's trades and pick those with high winning rate.
Cryotp Trading is not a Hassle free business, this is very risky business for new people, and nobody can make good amount from crypto currency without any Risk.
This is why there's always a caveat to every form of trading on the trading/exchange sites that one could lose one's capital. Again, crypto trading is highly volatile and shouldn't be indulged by anyone who doesn't have the set skills for it.