you cannot trade and win, as you have to pay a percentage on every trade and cannot know the future.
you could get lucky but the longer you trade the more likely you will even out to a loss on percentage.
traders do provide stability to the market.
hodl and invest in ico's as a hedge is far more sure than to trade.
1 btc into ETH at the is worth between 500K~and $1M (about 750K).
Good luck trading into that with $500 from 2014 to now.
of course thier is also a lot of luck in ICO's and most of them will go to zero.
I think you have to diversify into a few alts though...which is kinda different to "tradeing" os more like hedging you position.
Eg Crypto is going to the 20T mark, but I don't know if it will be BTC taking the lions share, it could go to zero and ETH, IOTA, PPC, NEM, LTC, DOGE taking the market.