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.
What I uphold all the way around is to keep your bets within a single digit percentage of your paycut. I always advise my friends to keep each bet between 1 to 5% of their bankroll. Stay within this range, so you can overcome volatility & avoid ruin. The fact is, you will find up to 90% of bettors lose in the long run, so bankroll control is not just about cleverness, it is the only way to keep playing without getting hurt, my friend. You have the mindset that separates the calm bettors from the ones chasing chaotic losses.