Yes you are right that mate gambling and trading are not the same in all aspects cause trading is you can earn money and Also its matter on knowledge while in gambling as we all know that the only thing they need to do in order to win in gambling is they will pray that The brought thier luck, cause in the world of gambling luck is the only way to win a good amount cause when the gambler don't have his/her luck then they can't win.
It's not only a matter of luck. If you are a trader then you nedd to make some researches and use your trading skills to make a decision on whether to buy an asset or to sell it because you expect its price is going to rise or fall. But when gambling, you just chose either up or down and rely purely on luck.
The above doesn't mean much, what really matters is that when you gamble you are supposed to be having fun regardless of whether you win or lose but when you trade you are expecting to have a profit.