follow your instincts
if going all in is your thing and you feel lucky, go ahead
well, at least try to do the math first before betting
A real gambler throws bet whenever he wants to and how much he want to. He base it on his feelings although some people do some math stuffs, I think most gambling sites are random. Some people might say a gambling site is rigged because they lose continuously but we really don't know that.
Real gamblers those who have balls to go all in. That kind of gambler does only rely on luck by doing it but not a smart gambler. So if you want to be a smart gambler never do all in cause you cannot last in the long run if you keep doing it. You should have a plan before gambling, the amount you want to win/loss and stick to it no matter what happened.