I'm still experimenting with my adapted Martingale.
All experiments with martingale ended the same way. Why do you think you are smarter than everyone else and ignoring facts?
One trick I recently started using to avoid dangerously long streaks is watching the rolled numbers and try to predict a pattern.
You can watch rolled numbers 20 years and you won't find any pattern, you know why? Because there isn't any.
Usually it;s not easy, but a few times, you could detect a recognizable pattern.
No, you can't!
Example: if you roll the following sequence of numbers:
13503
24679
39573
45012
You can bet almost safely that the next roll would be higher than 50000
Or lower than 5000.
Another example of a recognizable pattern is something like:
49321
51893
46061
54021
32023
You can bet almost safely that the next would be above 6000
Or under 6000.
Then again, the problem with these patterns is that you never know when they change and switch to another pattern or just another totally irrelevant random number
Which means it is random.
After 20 rolled high numbers chance to roll high number IS 50%(little less because HE), also chance to roll low number is the same - nearly 50%.
There is no pattern, there is no such thing as higher chance on next roll because previous roll was...
Your math sucks