Even if you have great self control trading will make you forget it. I am talking from personal experience here, I remember very well when I was trading and I couldn't even sleep at night. At 2 am in the morning I used to woke up and to check my positions in trading. That's how obsessed with trading I was and that lead me to losing everything. Now its been about 3 years I have fully recovered from this disease as that's what I will call it, a big disease. I want to tell anyone to stop trading as you will never come on top of that no matter how skillful you are. Ask yourself a simple question , if trading was so profitable for the traders would there be so many trading houses and websites out there ? I don't think so. Trading truly is unpredictable.
I guess I'm lucky I spent 1 hour day reviewing my trades from yesterday then do research for that day's trades and sleep at night.
As for trading houses they are not like casinos they are more like poker sites, they take a cut from every trade but they make the same from winner and from loosers and casinos need loosers if everyone was a winner in blackjack, rullet , slots then there would be no vegas stip the strip depends on loosers forking over their savings.
Now there are tons and tons of loosers in trading i'm sure of it and hard to win. But I know I win more then i loose so if that stays the same i'll keep trading.