Are you playing to lose or you are playing to win? a friend of mine lose all his bitcoin to trading and when he started complaining about i decide to take a look and i detected that he traded in a gambler's way.
He has 100$ and he traded just twice with 50$ which results in quick lose,im not an trading expert but most trading platforms always warn traders to limit their trading to the highest of 10$ which would have given him more chances to continue trading
Apart from not learning how trading works he is playing to lose,i think this is what many newbies are doing as well,if you are doing the same you will always end up losing your money,if you want to bet 50$ on a trade you must have thousands of dollars on the trading platform not trading with 100$ and be praying for a miracle.
Trading is not something you can rush,expert traders out there spend days trading for profits and if a particular day is full of loss they quit trading for that day.
Thats quality over quantity, choosing many shots to win more I guess. Most of the people think that big investment means big returns too but they forget in the process that it also has high risk involved.
I am trading on the local bitcoins literally and its not even real trading website but gives me pretty good profits as I play slow and steady on it. Its fun and profitable if you apply few simple tricks.
Like your friend who seems to had greedy trade and went for quick money. That never works.