Why Limits Are the Only Strategy Here
Because nothing else in this game is available to be improved. The odds are fixed, the digit is generated elsewhere, and no reading of the history changes the next round. What remains is how much money passes through the board and for how long — and both are set by limits rather than by skill.
That is an unglamorous answer, which is why the market around these rounds is full of more exciting ones. The exciting versions cost money; this one does not.
If a Limit Has Failed
Treat it as information rather than as a character verdict. A limit that failed was probably the weakest kind — a private resolution with no mechanism behind it. The response is a stronger mechanism next time: an account-level cap, no saved payment method, a round count written down.
The patterns worth noticing before that point are on the warning signs page, and every guide is listed on the home page.