Yeah - sorry, I'd have to agree. Unless you have some kind of insider information (not sure that would be legal, but anyway) then I think trading is exactly the same as gambling.
Also, insider information works for betting too... it's all way more similar than I think people want to believe.
In any case, if you're an ordinary 'human' trader you're going to lose out to trading bots and companies with massively faster connections to the data (so they can move faster) than you ever can.
Just my opinion mind you!
How can you have that inside information, it will only be possible if the market is rigged just like rigged games in sports betting. There is no such thing like that in trading, the price moves in real time and it is the true performance of the market. You have to make an effort for you to predict the right movement, otherwise you won't profit and you are just wasting your time and effort.