yes if you do trading in a limit and then do not exceed that limit you can really play gambling in a safe ways. but you must stand firmly on your decision.
In trading there is always a right way to earn your money not just put you money in there but you also need to work on it just to earn, unlike gambling we can just rely on our luck and we don't know when we can win or we can really win in the game. But if you just want to be safe we need to use small amount of money in our every game, just to lessen our loses.