What I know is that trading and gambling are two different things and that they're completely different from each other for various reasons...

In trading, your risk is calculated, in gambling, it is not.
In trading, your rule-set is defined, in gambling, it is not.
In trading, your expectations are rational, in gambling, it is not.
In trading, there is a dependence on skills, in gambling, it is on luck.

Also, while trading, life can be boring... however, when you're gambling, life seems exciting!