I have my gambling wallet now which i dont need to get any percent on my icome ust to be happy on gambling.
I liked your idea , since it needs a certain amount of investment to start gambling ig if we can manage our winning we can completely free from our drawbacks to pull the investment from our earnings.
Then you could just give your deposit to the casino right away, without playing at all, if you were ready for it. 
But it turns out that you just wasted your time. In vain. With zero result.
There is nothing called zeero result. I learned something new by losing. Even though you've mastered every possible move on a chess you'll still found some uncertain move from your opponent to be made. In this world there's nothing called eminent , nothing is absolute. Winning and losing is the part of gambling only difference is I lose intentionally by learning something new. But it turns out that you just wasted your time. In vain. With zero result.I think it really depends on how much you want to play. I've seen some people talk about percentages, but I think a good idea is to take your total deposit and divide it by the number of times you want to play in a week, month, or day. It's easier to organize yourself that way.
Well I deposit play win/lose and withdraw. I don't keep money on casino. It's always trickling me if there's any fund/money on casino site😂
I don't really have any intention of making money from gambling or doing anything important in real life with the money from gambling. If I win big, I might spend some money on a party or go out to eat. But most of the time I gamble to lose.
The moment you start playing with a mindset of losing, you will defenetly loose all your money. If you take my one as a example. I was in 2x profit, it's not like I reach this 2x in just one go. I was almost in a brink of death, by losing all but I returned from that stage not once but twice. I could have made a safe exit. But what I learned is their nothing called pushed your boundaries in gambling. If you gamble excessive in a day, loosing is bound to happened