when one bet is not more than 3-5% of the pot, then everything will be all right, even if you will overtaken by a series of unsuccessful bets.
Some people will have in mind that they will not touch more than 2 to 5% which they budget for gambling, touching more than that should have indicated to them that they are gambling becoming a game long addict. I have my gambling budget to be 2 to 5% and not more, I gamble just weekends, even if I lose, I will not be sad because it is chicken change that I used which makes me to to be depressed, even if I win, I use the money for fun.