Don’t increase your bet when you are losing because it will just amplify your loss immediately once you are in bad streak. Always test the water before you increase your bet. 
Assuming I have $20 to be used to bet for the week. I want to go for 3 rounds. Anytime I win, I will stop gambling for the day. I go for a 3 odd game.For 3 odd games
I bet $5
If I lose, I will bet $10
If I lose I will bet $20
This is called martingale which we all know and can be used to win. Anytime I win, I will stop playing. If I lost three 3 times, I lost for the week, but the chance that I will lose three time is very small. All losses after a single winning would be recovered and there would be more profit.
The disadvantages are that you will not be able to stay long to gamble and also if you lost more, the higer the losses in the next round. It takes discipline and responsible gambling.
you gamble using marti angle. very risky can run out all the money you have if you use marti angle. what's more a gambler is usually zero some game. lose all so zero than lose. even though there are still tomorrow's matches2 interesting and easy to guess than playing marti angle zero some game.