Trading is different from gambling trading is based on 50% skills and 50% luck and gambling is purely based on luck.if you talk about profit then gambling can make you rich overnight provided you are lucky enough and trading can make sure you have reasonable and consistent profits provided you have skills and patience.Both have their pros and cons and if i have to choose one over the other i would go for trading less risky then gambling my coins away.

beside gambling can make you rich overnight, we have high risk too and chance to losing our money if we are not lucky. but in trading, once we are loss in value when the price is down, we still have a chance to make profit in the other day. the only thing that we need in trading is patience to wait until the price is rise again.
In my opinion gambling always been a bad option for someone who want to earn money by easy means, we can say it. Trading always been a profitable business from a long time and whereas the gambling has always been a worthless game of money. You cant lose more in trade but you can loss everything just in a moment in gambling.