I gamble based on percentage of my total income and I keep it at single digit to avoid losing too much. I carefully measure how lucky I am in a day of gambling because this is how I know if to continue to gamble or stop for the day. If the day is my lucky day, I have to make good use of it but I will try to remain within my budget for the day and also not exceed the overall target for the week/month. I have noted that managing the funds is the most important aspect of gambling so maintaining a target is a top priority.