If you decide to change your numbers before a 100 rounds are up, you can invariably stop autoplay and restart it.
In olden days animal bones were employed to make dices. Some simply lose and even go bankrupt, being another victim with the rather inevitable bad beginners luck. https://tingamegenz.com/giai-tri/cong-game-rikvip-san-choi-dang-de-trai-nghiem/23530