The best practice with gambling that I follow is to spend time for gambling with specific schedule. Then fixing an amount to be spend whether it is a win or loss doesn't matter. Apart from this using small amounts on gambling, because what we loss should not affect us in any form.
You call it good practice? But for me I think this is the worst game that ever be played. People are ruining their lives just because of this gambling. This thing is not for making money and nether it is for any fun or entertainment purposes. So better is to find some other source of income for you so that youre ending results can be found good. May you understand this point?