you just have to learn trading once you think you're good at it then you'll have a great future making profit in trading not like in gambling all you need is luck to win.. though they are some games that requires skills and strategies like poker but some games you just have to roll like roulettes and dice games. Both trading and gambling have risks but you can minimize the risk in trading if you're going to be good at it.
Trading is more profitable than gambling but if you have good experience in trading. And you know all the trading skill and have good knowledge and analysis about trading, then trading is more safe and less risky to make money. Even if you will invest a big amount of money will be confident about and will always get a good result from it.
I think what your talking about is profitable in a sense that you would get more money in a safe way unlike in gambling it's an instantaneous thing that you could win for a few seconds then suddenly lose when you make a losing bet. The exchange is what going to make you think of what is going to happen, it's not always going to be so safe if you don't trust, it would just destroy your mind because of worrying.