You have a good method to prevent depositing more money every month and I see that you can hold yourself not to gambling until the next month.
Maybe I can suggest splitting the money that you deposit monthly to be used every week so you do not lose all money.
At least, you can see your balance for the next week and can directly playing without deposit more money.
Becoming a smart gambler will be necessary and prevent the addiction that can happen to any gambler.
We should prevent losing big money at once and managing the emotion while we gamble because that is the risk that we should concern about.
If you can do it monthly with no excess, it's easy to change it for you,
That's disincline which is very important when you are dealing with gambling, it's good to see that you can limit yourself and if you can adjust and try splitting your monthly balance to a week, it will allow you to extend your stay but not to add up more money to your bankroll, along those lines, the chance of winning is also possible since you can simply stop when you wanted to with no hesitations.
Being smart is how experienced gamblers use as an advantage during their gambling sessions, knows when to stop every time you need to quit.