It is possible for a player's goals to continue increasing over time. Most players do have room to continue extending themselves, so it's not an issue for the majority of players.
These goals are calculated by an algorithm within the StepBet game. We understand that you may find your step goals are too high, however, we are not able to manually change goals for players as they are calculated automatically using your device's step history and they are tailored to you specifically.
We've been creating some member-only games for those who do not want to get harder goals or need something a bit easier. Currently, we have the StepBet Maintainer, the Recovery, and the 2 Free Days games. If there is interest, we will continue to offer these easier games and other special games in the future!