Well, have a trading system that is completely different from gambling. you can control what you seek income from trading. basically trading is simply buying and selling. it is just like buying gold, and wait for the price to be rising. whereas gambling is a game that risked valuable objects.
You made your explanation too simple and left out other things. Imo, They both have similar and different aspects but in the end trading will
always be the one to be worth it. Trading becomes similar to gambling when you have a 50-50 percent chance of profiting, A great example
is buying a newly released coin or its ICO. Many people are still losing money because of this, They thought that the coin will be promising
after some weeks but it most of the time its not.