If para venture a gambler has lost to the extent that he has less that 10% of the bank roll left. I don't think keeping that amount would do anything good to him rather he is allowed to completely use all of it to gamble. Perhaps that might just be the game that he is looking for to return back to the original 100% bankroll. Most times i have been lucky to get back my initial deposit or even a little profit top up on it when i use the last money left to gamble. I don't know if it happens to other gambler too but i several times i have encounter it.
Although, its not just you alone. Many gamblers out there would possibly do the same thing because there is nothing left to do or the money cannot be used for anything good anymore. The risk is worth taking in that scenario. If you lose the you lose, but one can be lucky at times.
Even though you have succeeded several times, using your last money to gamble is not a suggestion in my opinion, maybe this action is only done by a few people who in my opinion are already at a point that can be said to be resigned, because by gambling the last money they have, it is likely that it will only make us lose, not to mention the reality that I think losing is what will often happen, including with you myself, I doubt that profit is more dominant than loss.
I agree with you, there are times when we will be lucky but no one knows when this will happen, so if you do have the last money, you should not take the wrong step, if you really want to gamble it, then there must be considerations made by thinking about when the money is lost, we have to survive what it will be like in the future, borrowing money may be possible but that is not something that must be done.